Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
cong danh » cuong danh, cong dan, cong thanh
trang va » hang va
tran van » luan van
danh gia » dan gian
gia xu » gian xu, gia su, gia tu

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 - canh ((trang va) OR (tran van)) nhung cong danh gia xu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - canh ((trang va) OR (tran van)) nhung cong danh gia xu".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - canh ((trang va) OR (tran van)) nhung cong danh gia xu*.