Perhaps you should try some spelling variations:
nam trung » nam trong, tai trung, ba trung
trung va » truong va, trang va, trung ha
su triet » su viet, ve triet
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
su tien » su kien, su hien, tu tieng
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach v nang xa hoi. hieu va nam trung va hanh va ((su triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang xa hoi. hieu va nam trung va hanh va ((su triet) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: su sach v nang xa hoi. hieu va nam trung va hanh va ((su triet) or (su tien))*.