Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
ban hanh » ban hang
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
ve cac » va cac, vien cac
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua

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 y nang xa hoi. hieu ve cac xuc ((ban hanh) or (va thanh)) ((di cua) OR (de cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ve cac xuc ((ban hanh) OR (va thanh)) ((di cua) OR (de cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ve cac xuc ((ban hanh) or (va thanh)) ((di cua) OR (de cua)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ve cac xuc ((ban hanh) or (va thanh)) ((di cua) OR (de cua)) triet*.