Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
anh quang » anh xquang, anh quan, nhanh quang
quang va » quang van, quan va, quang ma
dan chan » dan gian, dan ca, van chat
dan can » dan canh, dan ca, ban can

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 (thien anh)) - anh quang va nhung cong ((dan can) or (dan chan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - anh quang va nhung cong ((dan can) OR (dan chan)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - anh quang va nhung cong ((dan can) or (dan chan)) ban*.