Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
ban thanh » ban hanh, ban hang
hai cua » thai cua, dai cua, hoi cua
cao hoi » cau hoi, co hoi, cao hoc
hieu va » lieu va
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
tu san » thu san, tu ban, vu san
cua te » cua tu
tu can » tu ban, tu cac, thu canh

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) OR (tu can)) ky nang cao hoi. ((hieu va) or (hieu qua)) cam duc ban thanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu can)) ky nang cao hoi. ((hieu va) OR (hieu qua)) cam duc ban thanh hai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (tu can)) ky nang cao hoi. ((hieu va) or (hieu qua)) cam duc ban thanh hai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (tu can)) ky nang cao hoi. ((hieu va) or (hieu qua)) cam duc ban thanh hai cua te*.