Perhaps you should try some spelling variations:
thuong cang » thuong lang, thuong quang, thuong han
thanh tung » thanh cong
cua thuong » cua truong, cua phuong, ca thuong
hieu lang » chieu sang, hieu quang, nhieu tang
hoi hieu » hoi phieu, hoi tieu, moi hieu
cang van » dang van, tang van, lang van
toan cau » toan cao, toan ban, toan tap
tan cau » van cau, tan ca, tao cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - ((hanh chinh) or (thanh tung)) cua thuong cang van ((tan cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - ((hanh chinh) OR (thanh tung)) cua thuong cang van ((tan cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi hieu lang - ((hanh chinh) or (thanh tung)) cua thuong cang van ((tan cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - ((hanh chinh) or (thanh tung)) cua thuong cang van ((tan cau) OR (toan cau))*.