Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
hien xanh » hien hanh, hien nhanh, chieu xanh
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
hach toan » thanh toan, manh toan
tac toan » tap toan, tam toan, tich toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - ((hanh trang) OR (hanh trinh)) quan dung cong ((tac toan) or (hach toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((hanh trang) OR (hanh trinh)) quan dung cong ((tac toan) OR (hach toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((hanh trang) OR (hanh trinh)) quan dung cong ((tac toan) or (hach toan)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((hanh trang) OR (hanh trinh)) quan dung cong ((tac toan) or (hach toan)) ban*.