Perhaps you should try some spelling variations:
tran hoang » tran hong, quan hoang, tran quang
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoang van » hang va
dang cong » dung cong
tan thanh » tran thanh, tang thanh, toan thanh
van dang » van dong, van dung, van nang
tan than » tan tran, ban than, tam than

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