Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » thien van, lieu va, hieu ve
truc van » truc va, thuc van, truc ban
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
hanh ve » hanh vi, hanh va, hanh kem
su sai » su tai, su hai, su dai
sai ky » sac ky
anh ve » anh va, anh viet, thanh ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky nang xa hoi. ((hieu van) or (hieu va)) cau truc van ((anh ve) OR (hanh ve)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky nang xa hoi. ((hieu van) OR (hieu va)) cau truc van ((anh ve) OR (hanh ve)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky nang xa hoi. ((hieu van) or (hieu va)) cau truc van ((anh ve) OR (hanh ve)) cua triet*".