Perhaps you should try some spelling variations:
tranh tran » thanh tran, tranh toan, tranh tren
tran thong » toan thong, tran hong, tran trong
thong cong » trong cong, tong cong, thong thong
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
cong anh » cong danh, dong anh, hong anh
tuan ban » tuan bang, toan ban, quang ban
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: chao ((chu xanh) or (chu manh)) - canh tranh tran thong cong anh ((tuan ban) OR (luan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chu xanh) OR (chu manh)) - canh tranh tran thong cong anh ((tuan ban) OR (luan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu xanh) or (chu manh)) - canh tranh tran thong cong anh ((tuan ban) OR (luan ban))".
• Adding a wildcard symbol may retrieve word variants: chao ((chu xanh) or (chu manh)) - canh tranh tran thong cong anh ((tuan ban) OR (luan ban))*.