Perhaps you should try some spelling variations:
hanh doi » thanh doi, hanh noi, hang doi
su triet » su tien, ve triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va tham » van tham, va cham, va thanh
vuc van » luc van, thuc van, chuc van
duc van » duc va, duc tan, duc manh
su viet » so 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 lang xa hoi. lieu va tham ((vuc van) or (duc van)) hanh doi ((su triet) OR (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky lang xa hoi. lieu va tham ((vuc van) OR (duc van)) hanh doi ((su triet) OR (su viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky lang xa hoi. lieu va tham ((vuc van) or (duc van)) hanh doi ((su triet) OR (su viet))".
• Adding a wildcard symbol may retrieve word variants: tu san ky lang xa hoi. lieu va tham ((vuc van) or (duc van)) hanh doi ((su triet) OR (su viet))*.