Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
hanh tang » anh tang, hanh mang, hanh tung
cua nhung » va nhung
ho trieu » mot trieu, 25 trieu, 30 trieu
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
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 trang)) cua nhung cong tap toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho trieu tinh - ((hanh tang) OR (hanh trang)) cua nhung cong tap toan cao".
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - ((hanh tang) OR (hanh trang)) cua nhung cong tap toan cao*.