Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua viet » ca viet, hoa viet, cua vat
thu sang » thu hang, thu san, thu bang
thanh di » thanh doi, thanh de, thanh do
tu sang » tu san, tu lang, tu quang
cac xuc » cam xuc, cac nuoc, chat xuc
xuc ban » duc ban, cuc ban, quoc ban
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
co viet » so viet, o viet, hoc viet

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: ((tu sang) OR (thu sang)) ky lang xa hoi. hieu va cac xuc ban thanh di ((cua viet) OR (co viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sang) OR (thu sang)) ky lang xa hoi. hieu va cac xuc ban thanh di ((cua viet) or (co viet))~".
• Adding a wildcard symbol may retrieve word variants: ((tu sang) OR (thu sang)) ky lang xa hoi. hieu va cac xuc ban thanh di ((cua viet) or (co viet))*.