When searching for sources, use your keywords, do not type in whole sentences.
There is no one 'correct' search word to use. Different keywords will give you more results. Think of words that mean the same or something similar as your topic and try those words too. E.g. Food, Diet, Meals, Cuisine
You may need to broaden or narrow your search terms depending on your results :
Broader Search: Agriculture instead of Farms
Narrower Search: Reservoir instead of Water
Use the asterisk * to truncate words and widen your search. Agricult* will search for Agriculture and Agricultural
Use quotation marks to keep phrases together: e.g. "Food Culture" "Native Crops"
Try your search terms in different combinations to get the greatest number of results.
India AND "Native Crops"
India AND "Food Habits"
India AND Cuisine AND History
India AND Food Culture
India AND Popular Foods AND Society