Perhaps you should try some spelling variations:
tran hoang » tran hong, quan hoang, tran quang
thieu manh » tien manh, trieu minh, chieu xanh
thoan lang » hoa lang, hoang lang, khoai lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
thon lang » nhon lang, tho lang, thong mang
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
toan cau » 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 manh) or (hieu manh)) - tran hoang ((thoan lang) OR (thon lang)) cong danh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu manh) OR (hieu manh)) - tran hoang ((thoan lang) OR (thon lang)) cong danh toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) or (hieu manh)) - tran hoang ((thoan lang) OR (thon lang)) cong danh toan cau*".