Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
hanh trinh » canh tranh, hanh chinh
hanh tang » hanh trang, anh tang, hanh mang
hang cong » dang cong, hang nong, bang cong
ho trieu » mot trieu, 25 trieu, 30 trieu
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - ((hanh tang) or (hanh trinh)) cua ((nhung cong) OR (hang cong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - ((hanh tang) OR (hanh trinh)) cua ((nhung cong) OR (hang cong)) dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho trieu tinh - ((hanh tang) or (hanh trinh)) cua ((nhung cong) OR (hang cong)) dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - ((hanh tang) or (hanh trinh)) cua ((nhung cong) OR (hang cong)) dan toan cau*.