Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
day thanh » dao thanh, dat thanh, da thanh
va thieu » va thiet, va hieu, va tieu
thuc day » thuc dan, thuc vat
va triet » va thiet, va trien, ve triet
nam thuc » nam thuoc, am thuc, nam thu
hieu ve » hieu va, hieu van
ly nang » ly hang, ly vang, ly quang
su sach » so sach, vu sach
ve nam » he nam, va nam, le nam

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) or (ky nang)) xa hoi. hieu ve nam thuc day thanh vai ((va triet) or (va thieu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly nang) OR (ky nang)) xa hoi. hieu ve nam thuc day thanh vai ((va triet) OR (va thieu)).
• Adding a wildcard symbol may retrieve word variants: su sach ((ly nang) or (ky nang)) xa hoi. hieu ve nam thuc day thanh vai ((va triet) or (va thieu))*.