Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoc sach » hoc sinh, hoc cac, hoc anh
hieu van » hieu va, thien van, lieu va
nhan luc » nang luc
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
bai cua » ban cua, dai cua, bai ca

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

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