Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
cua tre » cua te, cuu tre, cua triet
truc va » thuc va, thuc vat, trung va
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
tai cua » thai cua, tai cuc, tri cua
loc va » hoc va, luc va
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
tuc va » thuc va, tuc xa, duc va
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 hoi. hieu va cam ((((tuc va) OR (truc va))) or (loc va)) hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. hieu va cam ((((tuc va) OR (truc va))) OR (loc va)) hanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang xa hoi. hieu va cam ((((tuc va) OR (truc va))) or (loc va)) hanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. hieu va cam ((((tuc va) OR (truc va))) or (loc va)) hanh tai cua tre*.