Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
ve triet » va trien, su triet
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
hieu ve » hieu va, hieu van
danh de » hanh de, dan de, dang de
te cac » tu cac, te cao, de cac
ha hoi » hoa hoi, ha noi, xa hoi
ve cac » va cac, vien cac
xuc va » duc va, tuc 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: te cac ky dang ha hoi. hieu ve cac ((xuc va) or (thuc dan)) danh de ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky dang ha hoi. hieu ve cac ((xuc va) OR (thuc dan)) danh de ve triet.
• Adding a wildcard symbol may retrieve word variants: te cac ky dang ha hoi. hieu ve cac ((xuc va) or (thuc dan)) danh de ve triet*.