Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh lai » hanh lam, hanh tai, thanh lap
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
truc xa » tuc xa, truc va, truoc xay
xa hanh » xa thanh, xa khanh, va hanh
te sac » te sach, te cac
te san » te ban, ke san, tu san
cua tu » cua tuc, cua cu, cua te
cua su » qua su

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) or (te san)) ky nang xa hoi. hieu van cau truc xa hanh lai ((cua tu) OR (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky nang xa hoi. hieu van cau truc xa hanh lai ((cua tu) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (te san)) ky nang xa hoi. hieu van cau truc xa hanh lai ((cua tu) OR (cua su))".
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te san)) ky nang xa hoi. hieu van cau truc xa hanh lai ((cua tu) OR (cua su))*.