Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
chau phu » chau phi, chau au, chau tho
van hanh » ban hanh, van anh, van ban
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang xa hoi. ((hieu ve) or (lieu va)) chau phu ((van hanh) OR (van thanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. ((hieu ve) OR (lieu va)) chau phu ((van hanh) OR (van thanh)) vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. ((hieu ve) or (lieu va)) chau phu ((van hanh) OR (van thanh)) vi cua triet*".