Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
lang van » dang van, hoang van, giang van
tang van » dang van, hoang van, trong van
hanh tai » thanh tai, hang tai, han tai
cuu tre » cua tre, cau tren, cau treo
thuc va » thuc vat, thuc dan, thuc day
tai cuu » tai cuc, tai buu, tai cua
hieu va » hieu qua
va hanh » van hanh, va thanh, va danh
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((lang van) or (tang van)) hoi. ((hieu va) or (lieu va)) tham thuc va hanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((lang van) OR (tang van)) hoi. ((hieu va) OR (lieu va)) tham thuc va hanh tai cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky ((lang van) or (tang van)) hoi. ((hieu va) or (lieu va)) tham thuc va hanh tai cuu tre*.