Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham cuu » cap cuu, chat cua
cham luc » cham soc, nhan luc, chat lua
danh tu » anh tu, doanh thu
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
te sach » toc sach
nang ma » tang ma, nang cao, mang may
sang ma » tang ma, sang tao, mang may
tu cua » hu cua, vu 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 y ((nang ma) or (sang ma)) hoi. hieu ve ((cham luc) OR (cham cuu)) va danh tu cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang ma) OR (sang ma)) hoi. hieu ve ((cham luc) OR (cham cuu)) va danh tu cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang ma) or (sang ma)) hoi. hieu ve ((cham luc) OR (cham cuu)) va danh tu cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang ma) or (sang ma)) hoi. hieu ve ((cham luc) OR (cham cuu)) va danh tu cua triet*.