Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
tu sach » thu sach, te sach, tu cach
va doan » va doanh, van doan, va dan
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ty nang » ky nang, ty hang, ly nang
su sach » so sach, vu sach
huu tre » huu tri, cuu tre, huu them
luc va » duc va, tuc va, loc va
va huu » vu huu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ((ty nang) or (ty xang)) xa hoi. hieu ve cham luc va doan va huu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ((ty nang) OR (ty xang)) xa hoi. hieu ve cham luc va doan va huu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ((ty nang) or (ty xang)) xa hoi. hieu ve cham luc va doan va huu tre*.