Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
va cua » va chua, via cua, ca cua
loc va » hoc va, luc va
tuc va » thuc va, truc va, tuc xa
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao

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 xa) or (nang x)) hoi. hieu va cam ((tuc va) or (loc va)) hang va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang xa) OR (nang x)) hoi. hieu va cam ((tuc va) OR (loc va)) hang va cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky ((nang xa) or (nang x)) hoi. hieu va cam ((tuc va) or (loc va)) hang va cua tre*.