Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc hanh
thanh vi » hanh vi, thanh va, thanh ve
kho tang » cao tang
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, ky trong
thuc va » thuc vat, thuc dan, thuc day
vi cua » vai cua, di cua
vu san » va san, vu ban
ve nam » he nam, va nam, le nam
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu san ((ky tang) or (kho tang)) ma hoi. hieu ve nam ((thuc van) OR (thuc va)) thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu san ((ky tang) OR (kho tang)) ma hoi. hieu ve nam ((thuc van) OR (thuc va)) thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu san ((ky tang) or (kho tang)) ma hoi. hieu ve nam ((thuc van) OR (thuc va)) thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: vu san ((ky tang) or (kho tang)) ma hoi. hieu ve nam ((thuc van) OR (thuc va)) thanh vi cua te*.