Perhaps you should try some spelling variations:
dang khoi » dung khoa, hang khoa
va thieu » va thiet, va hieu, va tieu
va triet » va thiet, va trien, ve triet
dan khai » dang khai, van khai, doan khac
hac tuc » thac toc, thai tuc
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
te sach » toc sach
va hac » van hac, va khac, va cac
tuc va » thuc va, truc va, tuc xa

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 ty nang xa hoi. lieu va hac tuc va ((dan khai) or (dang khoi)) ((va triet) or (va thieu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. lieu va hac tuc va ((dan khai) OR (dang khoi)) ((va triet) OR (va thieu)).
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. lieu va hac tuc va ((dan khai) or (dang khoi)) ((va triet) or (va thieu))*.