Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
than tai » thanh tai, toan tai, nhan tai
xuc ban » duc ban, cuc ban, quoc ban
han tai » hang tai, nhan tai, van tai
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
co hoi » co loi
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang ((co hoi) OR (co hoc)). hieu ve cac xuc ban ((han tai) or (than tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((co hoi) OR (co hoc)). hieu ve cac xuc ban ((han tai) OR (than tai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang ((co hoi) OR (co hoc)). hieu ve cac xuc ban ((han tai) or (than tai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((co hoi) OR (co hoc)). hieu ve cac xuc ban ((han tai) or (than tai)) cua triet*.