Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
luoc van » luoc can, luoc va, luot van
hanh ve » hanh vi, hanh va, hanh kem
hanh de » hanh kem
luc van » luu van, duc van, luc va
hieu ve » hieu va, hieu van
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
ve cau » ke cau, va cau, ve cac
sac ky » cac ky, sai ky
ha hoi » hoa hoi, ha noi, xa hoi
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 lang ha hoi. hieu ve cau ((luc van) OR (luoc van)) ((hanh de) or (hanh ve)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang ha hoi. hieu ve cau ((luc van) OR (luoc van)) ((hanh de) OR (hanh ve)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang ha hoi. hieu ve cau ((luc van) OR (luoc van)) ((hanh de) or (hanh ve)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang ha hoi. hieu ve cau ((luc van) OR (luoc van)) ((hanh de) or (hanh ve)) cua triet*.