Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
te sach » toc sach
may hoi » may thoi, tay hoi, may hmi
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va danh » va dinh, va dan, va hanh
dau cua » day cua, cau cua, dan cua
y mang » cay mang
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: te sach y mang ((may hoi) OR (mai hoi)). hieu ve cham luc va danh ((dau cua) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y mang ((may hoi) OR (mai hoi)). hieu ve cham luc va danh ((dau cua) OR (dai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y mang ((may hoi) OR (mai hoi)). hieu ve cham luc va danh ((dau cua) or (dai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: te sach y mang ((may hoi) OR (mai hoi)). hieu ve cham luc va danh ((dau cua) or (dai cua)) triet*.