Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
truc van » truc va, thuc van, truc ban
hieu ve » hieu va, hieu van
dang ha » dong ha, dung ha, lang ha
hanh de » hanh ve, hanh kem
ky dang » ky nang, ky danh
ha hoi » hoa hoi, ha noi, xa hoi
ve cau » ke cau, va cau, ve cac
san ky » sang ky, van ky, dan ky
te san » te ban, ke san, tu 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 san ky dang ha hoi. hieu ve cau truc van ((hanh de) or (hanh vi)) ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky dang ha hoi. hieu ve cau truc van ((hanh de) OR (hanh vi)) ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te san ky dang ha hoi. hieu ve cau truc van ((hanh de) or (hanh vi)) ((cua triet) or (su triet))*.