Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
va triet » va thiet, ve triet, cua triet
danh dau » lanh dao, hang dau, danh tu
van danh » van doanh, van anh, van hanh
cham luc » cham soc, nhan luc, cham cuu
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
luc van » luoc van, luu van, duc van
tang ma » tang van
te sach » toc sach

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 ((tang ma) or (mang may)) hoi. hieu ve cham luc van danh dau ((va triet) OR (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((tang ma) OR (mang may)) hoi. hieu ve cham luc van danh dau ((va triet) OR (va trien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((tang ma) or (mang may)) hoi. hieu ve cham luc van danh dau ((va triet) OR (va trien))".
• Adding a wildcard symbol may retrieve word variants: te sach y ((tang ma) or (mang may)) hoi. hieu ve cham luc van danh dau ((va triet) OR (va trien))*.