Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham luc » cham soc, nhan luc, cham cuu
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
cua viet » ca viet, hoa viet, cua vat
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
luc ban » duc ban, cuc ban, luc bat
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: thu sach ky nang xa hoi. ((hieu va) OR (lieu va)) cham luc ban hanh vai ((cua viet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. ((hieu va) OR (lieu va)) cham luc ban hanh vai ((cua viet) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang xa hoi. ((hieu va) OR (lieu va)) cham luc ban hanh vai ((cua viet) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. ((hieu va) OR (lieu va)) cham luc ban hanh vai ((cua viet) or (cua te))*.