Perhaps you should try some spelling variations:
luong quang » luong quan, dung quang
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
toan cao » toan ban
toan tap » toan ban

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 xanh - hanh tranh cua nhung ((cong vang) or (luong quang)) ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh tranh cua nhung ((cong vang) OR (luong quang)) ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh tranh cua nhung ((cong vang) or (luong quang)) ((toan cao) or (toan tap))*.