Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
hanh trinh » canh tranh, hanh chinh
hoc thieu » hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
dan toan » van toan, dan than, manh 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: ((hoc thieu) or (toc thieu)) cac - hanh trinh cua ((nhung cong) or (dung cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) cac - hanh trinh cua ((nhung cong) OR (dung cong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) cac - hanh trinh cua ((nhung cong) or (dung cong)) dan toan cao*.