Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dua tren » dung tren
ban anh » ban hanh, ban banh, ban danh
xua ban » xuat ban, cua ban, qua ban
nam xua » nam cua, nam mua, nam qua
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
tu san » thu san, tu ban, tu can
anh ve » hanh ve, anh va, anh viet
tu sac » tu sach, tu cac, tu bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu san)) ky lang xa hoi. hieu van nam xua ban anh ve ((dua tren) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky lang xa hoi. hieu van nam xua ban anh ve ((dua tren) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky lang xa hoi. hieu van nam xua ban anh ve ((dua tren) or (cua tre))".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky lang xa hoi. hieu van nam xua ban anh ve ((dua tren) or (cua tre))*.