Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
lang thang » dang thanh, hung thang, lang trong
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
cong vinh » cong trinh, trong vinh, cong viec
vinh toan » tinh toan, hinh toan, minh toan
chi xanh » chi anh, chi danh, chi hanh
toan ban » van ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - ((lang thang) or (cang thang)) cua thong cong vinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((lang thang) OR (cang thang)) cua thong cong vinh toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - ((lang thang) or (cang thang)) cua thong cong vinh toan ban*.