Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
day thanh » dao thanh, dat thanh, da thanh
nam thuc » nam thuoc, am thuc, nam thu
thuc day » thuc dan, thuc vat
va triet » va trien, ve triet, cua triet
su sach » so sach, vu sach
sach lo » sach dao, sach doi, sach hoi
lo nang » ho nang, ly nang, loai nang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve nam » he nam, va nam, le nam
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 lo nang xa hoi. hieu ve nam thuc day thanh vai ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach lo nang xa hoi. hieu ve nam thuc day thanh vai ((va triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: su sach lo nang xa hoi. hieu ve nam thuc day thanh vai ((va triet) or (va thiet))*.