Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
kho tang » cao tang
chat huu » pham huu
van hanh » van thanh, ban hanh, van anh
sai kho » dai kho, tai khoa, dai khoa
tang ha » lang ha, tang ma, trung ha
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
huu van » cuu van, huu han, luu van
cua tre » cua te, cuu tre, dua tren
tu sai » tu bai, tu san, tu cai
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai kho tang ha hoi. hieu ve chat huu van hanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai kho tang ha hoi. hieu ve chat huu van hanh vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sai kho tang ha hoi. hieu ve chat huu van hanh vi ((cua tre) or (cua triet))*.