Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
cua hang » cua dang, cua nhung, cua cong
cong tap » cuong tap, cong tan, tong tap
cong tac » cong ty
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 hien xanh - hanh tranh cua hang ((cong tap) OR (cong tac)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tranh cua hang ((cong tap) OR (cong tac)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua hang ((cong tap) OR (cong tac)) toan cao*.