Perhaps you should try some spelling variations:
thieu khang » thieu quang
chieu khong » chien chong, chu khong, chieu duong
nhanh lang » nhanh quang, nhanh thang, nhan dang
dung danh » dung doanh, dung dan, cuong danh
danh tuan » anh tuan, manh tuan, danh thanh
tuan cau » toan cau, quan cau, tuan cu
cao ung » cao dung, cac ung, cho ung

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) OR (chieu khong)) - ((nhanh lang) or (canh tranh)) cao ung dung danh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu khang) OR (chieu khong)) - ((nhanh lang) OR (canh tranh)) cao ung dung danh tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu khang) OR (chieu khong)) - ((nhanh lang) or (canh tranh)) cao ung dung danh tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu khang) OR (chieu khong)) - ((nhanh lang) or (canh tranh)) cao ung dung danh tuan cau*.