Perhaps you should try some spelling variations:
thanh phan » thanh san, thanh toan, thanh hai
thu sac » thu sach, thu san, thu xac
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
mai hoi » mai khoi, dai hoi, lai hoi
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky
soc va » hoc va, loc va, doc va
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky nang ((ma hoi) or (mai hoi)). hieu vu cham soc va ((thanh pho) or (thanh phan)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang ((ma hoi) OR (mai hoi)). hieu vu cham soc va ((thanh pho) OR (thanh phan)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang ((ma hoi) or (mai hoi)). hieu vu cham soc va ((thanh pho) or (thanh phan)) cua tre*.