Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
so sach » so sanh, bo sach, co sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
sach ky » sac ky, sach y, sach ty
cua te » cua tu
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky lang xa hoi. hieu va ((cau luc) or (cam xuc)) ban thanh tai ((cua te) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky lang xa hoi. hieu va ((cau luc) OR (cam xuc)) ban thanh tai ((cua te) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: so sach ky lang xa hoi. hieu va ((cau luc) or (cam xuc)) ban thanh tai ((cua te) or (cua su))*.