Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
cua viet » ca viet, hoa viet, cua dieu
te sach » toc sach
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va danh » va dinh, va dan, va hanh
danh tu » anh tu, doanh thu
y tang » ky tang, 6 tang, 7 tang
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 tang xa hoi. hieu va cham luc va danh tu ((cua viet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y tang xa hoi. hieu va cham luc va danh tu ((cua viet) OR (cua vat)).
• Adding a wildcard symbol may retrieve word variants: te sach y tang xa hoi. hieu va cham luc va danh tu ((cua viet) or (cua vat))*.