Perhaps you should try some spelling variations:
cham luc » nhan luc, cham cuu, chat lua
te sach » toc sach
hieu vu » hieu va, hieu ve, hieu su
y nang » ky nang, ly nang, v nang
va dau » va dao
dau ca » dau cay, dau cua, dan ca
ca hoa » cau hoa, cam hoa, cai hoa
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu vu ((cham luc) or (cham soc)) va dau ca hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. hieu vu ((cham luc) OR (cham soc)) va dau ca hoa viet.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu vu ((cham luc) or (cham soc)) va dau ca hoa viet*.