Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cau trieu » cac trieu, cau triet, chua trieu
hanh lai » hanh lam, hanh tai, thanh lap
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
hac xuc » chat xuc
va hanh » van hanh, va thanh, va danh
va hac » van hac, va khac, va cac
xuc va » duc va, tuc va, luc va

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) OR (vu sach)) ky nang xa hoi. lieu va hac xuc va hanh lai ((cau trieu) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang xa hoi. lieu va hac xuc va hanh lai ((cau trieu) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ky nang xa hoi. lieu va hac xuc va hanh lai ((cau trieu) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ky nang xa hoi. lieu va hac xuc va hanh lai ((cau trieu) or (cua triet))*.