Perhaps you should try some spelling variations:
cuc triet » cua triet, su triet, cac trieu
thien van » thi van
hanh tai » thanh tai, hang tai, han tai
van cham » van chat, van tham, va cham
nang xa » nang x, lang xa, nang ma
sang ky » sang kyo, dang ky, tang ky
san ky » van ky, dan ky, ban ky
goc va » hoc va, doc va, uoc va
loc va » hoc va, luc va

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) OR (sang ky)) nang xa hoi. thien van cham ((goc va) or (loc va)) hanh tai cuc triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (sang ky)) nang xa hoi. thien van cham ((goc va) OR (loc va)) hanh tai cuc triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((san ky) OR (sang ky)) nang xa hoi. thien van cham ((goc va) or (loc va)) hanh tai cuc triet".
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) OR (sang ky)) nang xa hoi. thien van cham ((goc va) or (loc va)) hanh tai cuc triet*.