Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
thanh vai » thanh hai, thanh van, thanh oai
nhan luc » nang luc
hieu ve » hieu va, hieu van
ve nhan » ve nha, de nhan, va nhan
ty tang » tay tang, ty hang, ky tang
su sach » so sach, vu sach
luc va » duc va, tuc va, loc 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 ((ty tang) OR (ty xang)) ma hoa. hieu ve nhan luc va ((thanh vai) or (thanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty tang) OR (ty xang)) ma hoa. hieu ve nhan luc va ((thanh vai) OR (thanh tai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty tang) OR (ty xang)) ma hoa. hieu ve nhan luc va ((thanh vai) or (thanh tai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty tang) OR (ty xang)) ma hoa. hieu ve nhan luc va ((thanh vai) or (thanh tai)) cua triet*.