Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van dung » van dong, tin dung
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
cam tuc » cam xuc, cam tu, nam thuc
tai cua » thai cua, tai cuc, tri cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. ((hieu va) OR (lieu va)) cam tuc ((van dung) or (xay dung)) tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. ((hieu va) OR (lieu va)) cam tuc ((van dung) OR (xay dung)) tai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. ((hieu va) OR (lieu va)) cam tuc ((van dung) or (xay dung)) tai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. ((hieu va) OR (lieu va)) cam tuc ((van dung) or (xay dung)) tai cua triet*.