Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
va tham » van tham, va cham, va thanh
vuc van » luc van, thuc van, chuc van
duc van » duc va, duc tan, duc manh
hanh di » hanh vi, hanh de, hang di
so viet » hoc viet
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky nang xa hoi. lieu va tham ((vuc van) or (duc van)) hanh di ((su triet) or (so viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang xa hoi. lieu va tham ((vuc van) OR (duc van)) hanh di ((su triet) OR (so viet)).
• Adding a wildcard symbol may retrieve word variants: tu san ky nang xa hoi. lieu va tham ((vuc van) or (duc van)) hanh di ((su triet) or (so viet))*.