Perhaps you should try some spelling variations:
tinh vien » sinh vien, tinh dien, tinh viet
cua triet » cua viet, su triet, va triet
van nang » van quang, van ban, van dung
vien cua » viec cua, dien cua, tien cua
cao hoc » co hoc, cho hoc, chat hoc
va tinh » may tinh
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
luc va » duc va, tuc va, loc 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 sac) OR (tu san)) ky nang cao hoc. hieu ((van nang) or (van dong)) luc va tinh vien cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang cao hoc. hieu ((van nang) OR (van dong)) luc va tinh vien cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky nang cao hoc. hieu ((van nang) or (van dong)) luc va tinh vien cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky nang cao hoc. hieu ((van nang) or (van dong)) luc va tinh vien cua triet*.