Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
nong manh » nong lanh, duong manh, hoang manh
manh toan » thanh toan, anh tuan, tinh toan
cua dang » cua ban
toan tap » toan ban

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 xanh) or (hieu manh)) - hanh tranh ((cua dang) OR (cua cong)) nong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hanh tranh ((cua dang) OR (cua cong)) nong manh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (hieu manh)) - hanh tranh ((cua dang) OR (cua cong)) nong manh toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - hanh tranh ((cua dang) OR (cua cong)) nong manh toan tap*.