Perhaps you should try some spelling variations:
lanh tranh » canh tranh, lan tranh, hanh trinh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » thong cong, hang cong, nhung don
lanh manh » lan anh, van manh, anh anh
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - ((lanh manh) or (lanh tranh)) va ((nhung cong) OR (dung cong)) dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((lanh manh) OR (lanh tranh)) va ((nhung cong) OR (dung cong)) dan chan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((lanh manh) or (lanh tranh)) va ((nhung cong) OR (dung cong)) dan chan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((lanh manh) or (lanh tranh)) va ((nhung cong) OR (dung cong)) dan chan cau*.