Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, le thanh
su sach » so sach, vu sach
sach tu » sach thu, cach tu, sach ty
va tinh » may tinh
cu tren » tu tren, dua tren
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
vi cu » vi su, vi xu, vi du

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tu nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ((va thanh) OR (va tinh)) vi cu tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tu nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ((va thanh) or (va tinh)) vi cu tren~".
• Adding a wildcard symbol may retrieve word variants: su sach tu nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ((va thanh) or (va tinh)) vi cu tren*.