Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
hieu van » thien van, lieu va, hieu ve
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
cac dac » cac dan, cac dai, cac bac
hieu va » lieu va, hieu qua
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
da nang » cam nang, kha nang, cao nang
so sanh » do sanh
dac va » duc va, day va, dat va
cua te » cua tu

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) OR (so sanh)) da nang xa hoi. ((hieu van) OR (hieu va)) cac dac va thanh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) da nang xa hoi. ((hieu van) OR (hieu va)) cac dac va thanh vai cua te~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) da nang xa hoi. ((hieu van) OR (hieu va)) cac dac va thanh vai cua te*.