Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh tai » thanh tai, hang tai, han tai
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
te sac » te sach, te cac, te san
loc va » hoc va, luc va
sac ky » cac ky, sai ky
ha hoi » hoa hoi, ha noi, xa hoi

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 lang ha hoi. hieu va cac ((truc va) or (loc va)) hanh tai ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang ha hoi. hieu va cac ((truc va) OR (loc va)) hanh tai ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te sac ky lang ha hoi. hieu va cac ((truc va) or (loc va)) hanh tai ((cua tre) or (su triet))*.