Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, hieu cach
chieu sang » hieu lang, nhieu tang
trung cong » truong cong, trong cong, trung uong
trung cua » truong cua, trung tuan, trung cap
cua trung » cua truong, xuan trung, cua nhung
ban khoan » toan khoan, cac khoan, san khoa
cong ban » cong bang, cong san, cong tan
khoan va » doan va, khoa ma, nhan va

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 xanh) or (chieu sach))) or (chieu sang)) - thanh trung cua trung cong ban khoan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu xanh) OR (chieu sach))) OR (chieu sang)) - thanh trung cua trung cong ban khoan va.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu xanh) or (chieu sach))) or (chieu sang)) - thanh trung cua trung cong ban khoan va*.