Perhaps you should try some spelling variations:
khong cang » thong cong, hong bang, khong dung
chieu xanh » chieu sach, chieu sang, chieu tinh
thong dung » thong cong, thong thuong
doi chieu » doc hieu, doi chi, ho chieu
hanh manh » hanh mang, lanh manh, hoang manh
manh cua » doanh cua, ban cua
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - hanh manh cua ((khong cang) or (thong dung)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh manh cua ((khong cang) OR (thong dung)) dan than tap.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh manh cua ((khong cang) or (thong dung)) dan than tap*.