Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
va cham » va chat, va tham
tinh vi » trinh vi, tinh voi, tinh va
sach tu » sach thu, cach tu, sach uu
luc may » truc may, phuc may
tang ma » tang van
sach ty » sach y, sach thu, xach tay
hieu va » lieu va, hieu qua
vi cua » vai cua, di cua
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sach tu)) ((mang may) or (tang ma)) hoi. hieu va cham luc may tinh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach tu)) ((mang may) OR (tang ma)) hoi. hieu va cham luc may tinh vi cua te.
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sach tu)) ((mang may) or (tang ma)) hoi. hieu va cham luc may tinh vi cua te*.