Perhaps you should try some spelling variations:
hieu vien » hieu viec, thieu nien, hieu tieng
hieu hien » bieu hien, dieu hien, chieu chien
cua triet » cua viet, su triet, va triet
van nang » van quang, van ban, van dong
va nang » da nang, cam nang, kha nang
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang x hoi. ((hieu vien) or (hieu hien)) cac dan ((va nang) OR (van nang)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. ((hieu vien) OR (hieu hien)) cac dan ((va nang) OR (van nang)) di cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang x hoi. ((hieu vien) or (hieu hien)) cac dan ((va nang) OR (van nang)) di cua triet*".