Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
duong vanh » duong manh, duong anh, duong thanh
duong xanh » duong manh, duong sach, duong minh
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 khang - canh manh cua nhung ((((duong vanh) OR (duong van))) or (duong xanh)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - canh manh cua nhung ((((duong vanh) OR (duong van))) OR (duong xanh)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu khang - canh manh cua nhung ((((duong vanh) OR (duong van))) or (duong xanh)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - canh manh cua nhung ((((duong vanh) OR (duong van))) or (duong xanh)) tuan cau*.