Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
manh dung » manh hung, manh tung, anh dung
cua nhung » va nhung
dung cua » dung luan, dung cho
cong san » cong tac
tuan cau » toan cau, quan cau, tuan cu

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

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