Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
manh tuong » manh tung, manh cuong, minh tuong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tuong cao » truong cao, luong cao, duong cao
cao hang » cao dang, cao tang, cao bang
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
luan ban » luan van, luan san, luan han

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu xanh) or (hieu manh)) - manh tuong cao hang ((cong van) OR (song van)) luan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu xanh) OR (hieu manh)) - manh tuong cao hang ((cong van) OR (song van)) luan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu xanh) or (hieu manh)) - manh tuong cao hang ((cong van) OR (song van)) luan ban*".