Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
va triet » va thiet, va trien, cua triet
ve triet » va trien, su triet
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
luc bat » luc nhat, luat bat, duoc bat
sach ty » sach y, sach tu, sach thu
suc bat » duoc bat
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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 ty nang xa hoi. hieu va nhan ((luc bat) OR (suc bat)) hanh vi ((va triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ty nang xa hoi. hieu va nhan ((luc bat) OR (suc bat)) hanh vi ((va triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ty nang xa hoi. hieu va nhan ((luc bat) OR (suc bat)) hanh vi ((va triet) or (ve triet))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ty nang xa hoi. hieu va nhan ((luc bat) OR (suc bat)) hanh vi ((va triet) or (ve triet))*.