Perhaps you should try some spelling variations:
hieu quan » lieu quan, thien quan, lien quan
thanh dai » thanh hai, thanh tai, thanh dat
van thanh » ban thanh, van tuan
luoc van » luoc can, luoc va, luc van
cam luoc » cam xuc, tom luoc, cam lo
te sach » toc sach
sang ma » nang ma, sang tao, mang may
tang ma » mang may, tang van
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach _ ((sang ma) or (tang ma)) hoi. ((hieu quan) or (hieu qua)) cam luoc van thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach _ ((sang ma) OR (tang ma)) hoi. ((hieu quan) OR (hieu qua)) cam luoc van thanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach _ ((sang ma) or (tang ma)) hoi. ((hieu quan) or (hieu qua)) cam luoc van thanh dai cua tre*.