Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
nhan luc » nang luc
cham luc » cham soc, cham cuu, chat lua
dao cua » dai cua, day cua, dan cua
va lanh » va lang, va danh, va hanh
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa

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) or (toc sach)) ky tang ma hoi. hieu ve ((cham luc) or (nhan luc)) va lanh dao cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky tang ma hoi. hieu ve ((cham luc) OR (nhan luc)) va lanh dao cua triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ky tang ma hoi. hieu ve ((cham luc) or (nhan luc)) va lanh dao cua triet*.