Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nhan luc » nang luc
hang doi » hang di, hang loi, huong doi
ban hang » ngan hang
va trien » va truyen, va tuyen, va tieng
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
luc ban » duc ban, cuc ban, luc bat
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
su tien » su kien, su hien, tu tieng

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 nhan luc ban hang doi ((va thiet) or (((su tien) or (va trien))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. hieu va nhan luc ban hang doi ((va thiet) OR (((su tien) OR (va trien)))).
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. hieu va nhan luc ban hang doi ((va thiet) or (((su tien) or (va trien))))*.