Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
bang song » nang song
ho chieu » theo chieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - canh manh cua ((nhung cong) OR (bang song)) dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) tinh - canh manh cua ((nhung cong) or (bang song)) dan toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) tinh - canh manh cua ((nhung cong) or (bang song)) dan toan cao*.