Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh hai » thanh phan, thanh hoa, thanh san
kho tang » cao tang
hanh hai » nhanh hai, hang hai, hanh tai
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, ky trong
xuc van » duc van, luc van, vuc van
su cac » tu cac, su cao, su can
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ((ky tang) or (kho tang)) xa hoi. hieu ve cam xuc van ((hanh hai) OR (thanh hai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ((ky tang) OR (kho tang)) xa hoi. hieu ve cam xuc van ((hanh hai) OR (thanh hai)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ((ky tang) or (kho tang)) xa hoi. hieu ve cam xuc van ((hanh hai) OR (thanh hai)) cua triet*".