Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
dieu cua » dieu tra
tang mai » tang ma, tang tai, sang mai
lang mai » lang dai, lang hai, lang man
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
hieu vi » hieu voi, hieu va, hieu ve
sach ly » sach y, sach lo, sach ty
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ly ((tang mai) OR (lang mai)) hoi. hieu vi pham thuc va hanh ((di cua) or (dieu cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly ((tang mai) OR (lang mai)) hoi. hieu vi pham thuc va hanh ((di cua) OR (dieu cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly ((tang mai) OR (lang mai)) hoi. hieu vi pham thuc va hanh ((di cua) or (dieu cua)) te*".