Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
duong van » duong va, luong va, dang van
manh cua » doanh cua, ban cua
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 thieu quang - canh manh cua nhung ((duong manh) or (duong van)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu quang - canh manh cua nhung ((duong manh) OR (duong van)) tuan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu quang - canh manh cua nhung ((duong manh) or (duong van)) tuan cau*.