Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu nganh » vien nganh, hiem ngan, hieu manh
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
trinh san » trinh han, trinh quan, trinh toan
san tay » ban tay, dan tay, han tay

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu nganh) or (hieu lang)) - thanh trung cua nhung cong trinh san tay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu nganh) OR (hieu lang)) - thanh trung cua nhung cong trinh san tay.
• Adding a wildcard symbol may retrieve word variants: theo ((hieu nganh) or (hieu lang)) - thanh trung cua nhung cong trinh san tay*.