Perhaps you should try some spelling variations:
trong cuong » trong chuong, trong cong, trong luong
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
thien anh » thien danh, tien anh, thien thanh
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
cuong do » cuong vo, huong doi, duong dao
do van » dao van, vo van, so van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((chieu xanh) OR (chieu sang))) or (thien anh)) - canh tranh cua trong cuong do van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (chieu sang))) OR (thien anh)) - canh tranh cua trong cuong do van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((chieu xanh) OR (chieu sang))) or (thien anh)) - canh tranh cua trong cuong do van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) OR (chieu sang))) or (thien anh)) - canh tranh cua trong cuong do van ban*.