Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
thanh vung » thanh vuong, thanh tung, thanh hung
nhung cong » dung cong, thong cong, hang cong
vung tay » vung tau, dung tai, vung dat
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - thanh vung tay ((nhung cong) or (thong thong)) dan ((phan cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - thanh vung tay ((nhung cong) OR (thong thong)) dan ((phan cau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - thanh vung tay ((nhung cong) or (thong thong)) dan ((phan cau) or (phan cac))*.