Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
hanh trinh » hanh chinh
hoc thieu » toc thieu
cua nhung » va nhung
chong van » thong van, hong van, phong van
van toan » van tuan, van tan, van thanh
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 (hoc hien)) xanh - ((hanh trinh) or (canh tranh)) cua nhung chong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - ((hanh trinh) OR (canh tranh)) cua nhung chong van toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (hoc hien)) xanh - ((hanh trinh) or (canh tranh)) cua nhung chong van toan cao*".