Perhaps you should try some spelling variations:
thieu sang » thieu khang, thieu quang, hieu lang
chieu sang » chieu sach, chieu xanh, hieu lang
nhung dung » phuong dung, ung dung, thong dung
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
vanh tuan » anh tuan, manh tuan, thanh tuan
manh cua » doanh cua, ban cua
van tuan » van quan, van ban, anh tuan

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 (chieu sang)) - canh manh cua nhung dung ((vanh tuan) OR (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sang) OR (chieu sang)) - canh manh cua nhung dung ((vanh tuan) OR (van tuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sang) or (chieu sang)) - canh manh cua nhung dung ((vanh tuan) OR (van tuan)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sang) or (chieu sang)) - canh manh cua nhung dung ((vanh tuan) OR (van tuan)) cau*.