Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
su tien » su kien, su hien, tu tieng
ve cam » ve cham, ve cac, va cam
cam tu » cam thu, nam tu, dam tu
tai su » tai so, tai tu, lai su

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 ky ((nang xa) or (sang ma)) hoi. hieu ve cam tu va thanh tai su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang xa) OR (sang ma)) hoi. hieu ve cam tu va thanh tai su tien.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang xa) or (sang ma)) hoi. hieu ve cam tu va thanh tai su tien*.