Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
nam thuc » nam thuoc, nam thu, nam tu
da thanh » dao thanh, dat thanh, dam thanh
va trien » va truyen, va tuyen, va tieng
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ly nang xa hoi. hieu va ((nam thuc) or (am thuc)) da thanh vai ((va trien) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang xa hoi. hieu va ((nam thuc) OR (am thuc)) da thanh vai ((va trien) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: su sach ly nang xa hoi. hieu va ((nam thuc) or (am thuc)) da thanh vai ((va trien) or (va thiet))*.