Perhaps you should try some spelling variations:
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho
ve va » ve van, ke va, le va
te va » tu 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 sac ky nang x hoi. hieu ve cac ((xuc va) or (thuc va)) danh ((ve va) OR (te va)) trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang x hoi. hieu ve cac ((xuc va) OR (thuc va)) danh ((ve va) OR (te va)) trien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang x hoi. hieu ve cac ((xuc va) or (thuc va)) danh ((ve va) OR (te va)) trien".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang x hoi. hieu ve cac ((xuc va) or (thuc va)) danh ((ve va) OR (te va)) trien*.