Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
tang ma » mang may, tang van
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cac duc » cac du, cao duc, cac dac
duc ban » duc tan, duc van, dua ban
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
san ty » san tay, van ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san ty ((tang ma) or (lang xa)) hoi. hieu va cac duc ban thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ty ((tang ma) OR (lang xa)) hoi. hieu va cac duc ban thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat san ty ((tang ma) or (lang xa)) hoi. hieu va cac duc ban thanh vai cua tre*.