Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu vien » hieu hien, hieu viec, thieu nien
hanh doi » thanh doi, hanh noi, hang doi
cua tre » cua te, cuu tre, dua tren
te cac » tu cac, ve cac, te cao
tuc va » thuc va, truc va, tuc xa
loc va » hoc va, luc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cac ky nang x hoi. hieu vien bach ((tuc va) or (loc va)) hanh doi ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky nang x hoi. hieu vien bach ((tuc va) OR (loc va)) hanh doi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ky nang x hoi. hieu vien bach ((tuc va) or (loc va)) hanh doi ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te cac ky nang x hoi. hieu vien bach ((tuc va) or (loc va)) hanh doi ((cua tre) OR (cua triet))*.