Perhaps you should try some spelling variations:
kho tang » cao tang
hang tai » hang va, dung tai
sai kho » dai kho, tai khoa, dai khoa
tang xa » trang xa, tang ma, lang xa
qua cam » qua cham, qua cac, qua ca
duc van » duc va, duc manh, duc phan
cuc tre » duc tre, cua tre, cuu tre
su sai » su tai, su hai, su dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai kho tang xa hoi. hieu qua cam ((duc van) or (duc tan)) hang tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai kho tang xa hoi. hieu qua cam ((duc van) OR (duc tan)) hang tai cuc tre.
• Adding a wildcard symbol may retrieve word variants: su sai kho tang xa hoi. hieu qua cam ((duc van) or (duc tan)) hang tai cuc tre*.