Perhaps you should try some spelling variations:
kho tang » cao tang
tai thai » thi thai, tai hai, tay thai
tang ma » mang may, tang van
tai thi » tai chi
hieu va » lieu va, hieu qua
san kho » san khoa, san cho, lan kho
te san » te ban, ke san, tu san
ma hoi » mai hoi, xa hoi, ma hoa
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san kho tang ma hoi. hieu va cac ((loc va) or (thuc vat)) hanh ((tai thai) OR (tai thi)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san kho tang ma hoi. hieu va cac ((loc va) OR (thuc vat)) hanh ((tai thai) OR (tai thi)) tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san kho tang ma hoi. hieu va cac ((loc va) or (thuc vat)) hanh ((tai thai) OR (tai thi)) tren*".