Perhaps you should try some spelling variations:
trung thanh » truong thanh
trung tuan » trung tam, tran tuan, truong thanh
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
tan khoan » toan khoan, tai khoan, tao khoang
khoan cam » khoa cam, khoan va, phan cam
cong tan » cong tac, cong san, cong thanh
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - thanh ((trung tuan) or (trung thanh)) dung cong tan khoan cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh ((trung tuan) OR (trung thanh)) dung cong tan khoan cam.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh ((trung tuan) or (trung thanh)) dung cong tan khoan cam*.