Perhaps you should try some spelling variations:
thanh hang » thanh hoang, thanh thang, tranh hang
trinh toan » tinh toan, thanh toan, trinh han
hanh hang » hang hang, hanh han, hanh mang
chua xang » chua nang, chuc nang, chu bang
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
toan ban » van ban
chu van » cuu van, chu han

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chua xang) or (chu van)) - ((hanh hang) or (thanh hang)) cua bang cong trinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chua xang) OR (chu van)) - ((hanh hang) OR (thanh hang)) cua bang cong trinh toan ban.
• Adding a wildcard symbol may retrieve word variants: cho ((chua xang) or (chu van)) - ((hanh hang) or (thanh hang)) cua bang cong trinh toan ban*.