Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
chat loc » chat hoc, chat doc, chat long
va thanh » gia thanh, va tinh, le thanh
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua
x hoi » xa hoi, o hoi, 5 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 cac ky nang ((x hoi) or (x ho)). hieu ve chat loc ((va thanh) or (ban thanh)) va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((x hoi) OR (x ho)). hieu ve chat loc ((va thanh) OR (ban thanh)) va cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((x hoi) or (x ho)). hieu ve chat loc ((va thanh) or (ban thanh)) va cua tre*.