Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu
nhung cong » dung cong, thong cong, hang cong
toan khoan » toan khoa, toan phan, toan hoat
thi chieu » thi chien, thi hieu, thi hien
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong toan » cong tan, cong hoan, cong tuan
khoan cap » khoan cam, khan cap, khoa cap
ho chieu » hoc thieu, doi chieu, mot chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (((theo chieu) or (thi chieu)))) xanh - thanh trung cua nhung cong toan khoan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((theo chieu) OR (thi chieu)))) xanh - thanh trung cua nhung cong toan khoan cap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((theo chieu) or (thi chieu)))) xanh - thanh trung cua nhung cong toan khoan cap*.