Perhaps you should try some spelling variations:
tranh quan » tranh quang, trinh quan, tranh luan
quan dong » quang dong, quan long, quan hoang
dong cong » duong cong, dung cong, dang cong
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
chu xanh » chu manh, chieu xanh, chua xang
toan ban » van ban
chu han » chu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (chu han)) - canh tranh quan dong cong hach toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu han)) - canh tranh quan dong cong hach toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu han)) - canh tranh quan dong cong hach toan ban*.