Perhaps you should try some spelling variations:
nhung nhung » nhung phuong, phuong nhung, dung nhung
chieu xanh » chieu sach, chieu sang, chieu tinh
ho chieu » theo chieu, hoc thieu, mot chieu
tranh ve » trinh ve, thanh ve, tranh va
ve nhung » va nhung, tu nhung
bai toan » bai tap
toan cau » toan cao, toan ban, toan tap

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 - canh tranh ve nhung nhung bai toan cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh tranh ve nhung nhung bai toan cau*.