Perhaps you should try some spelling variations:
toan hanh » toan thanh, toan anh, tran hanh
cham duc » pham duc, cham soc, pham duy
tan hanh » tan thanh, tang hanh, tran hanh
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ma hoi » xa hoi, ma hoa, me hoi
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky nang ((ma hoi) or (mai hoi)). hieu va cham duc ((tan hanh) or (toan hanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang ((ma hoi) OR (mai hoi)). hieu va cham duc ((tan hanh) OR (toan hanh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu san ky nang ((ma hoi) or (mai hoi)). hieu va cham duc ((tan hanh) or (toan hanh)) vi cua tre*.