Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
thieu sang » chieu sang, thieu quang, hieu lang
nhung hung » nhung huong, nhung dung, nhung vung
cua nhung » va nhung
hung manh » nhung manh, hung anh, tung manh
manh tuan » anh tuan, manh toan, minh tuan
canh ban » canh dan, canh van, doanh ban
tuan cau » toan cau, quan cau, tuan cu
can ban » van ban, 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 ((thieu sang) OR (thieu khang)) - ((canh ban) or (can ban)) cua nhung hung manh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sang) OR (thieu khang)) - ((canh ban) OR (can ban)) cua nhung hung manh tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sang) OR (thieu khang)) - ((canh ban) or (can ban)) cua nhung hung manh tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sang) OR (thieu khang)) - ((canh ban) or (can ban)) cua nhung hung manh tuan cau*.