Perhaps you should try some spelling variations:
ve triet » va trien, su triet
cham luc » cham soc, nhan luc, cham cuu
danh dau » lanh dao, hang dau, danh tu
va cham » va chat, va tham
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
te sach » toc sach
me hoi » le hoi
y tang » ky tang, 6 tang, 7 tang
ma hoi » mai hoi, ma hoa, va hoi
luc va » duc va, tuc va, loc va
dau ve » dap ve

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 hoi) or (me hoi))) or (xa hoi)). hieu va cham luc va danh dau ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y tang ((((ma hoi) OR (me hoi))) OR (xa hoi)). hieu va cham luc va danh dau ve triet.
• Adding a wildcard symbol may retrieve word variants: te sach y tang ((((ma hoi) or (me hoi))) or (xa hoi)). hieu va cham luc va danh dau ve triet*.