Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nhan luc » nang luc
va triet » va thiet, va trien, ve triet
ban hanh » ban hang
tu tieng » luc tieng, tu tuong, tu trong
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, dau tien

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ky nang xa hoi. hieu va nhan luc ban hanh vi ((va triet) or (((su tien) OR (tu tieng))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang xa hoi. hieu va nhan luc ban hanh vi ((va triet) OR (((su tien) OR (tu tieng)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ky nang xa hoi. hieu va nhan luc ban hanh vi ((va triet) or (((su tien) OR (tu tieng))))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang xa hoi. hieu va nhan luc ban hanh vi ((va triet) or (((su tien) OR (tu tieng))))*.