Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
doanh cua » doanh luan
manh cua » ban cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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 sang - canh ((tranh cua) or (((manh cua) OR (doanh cua)))) thong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - canh ((tranh cua) OR (((manh cua) OR (doanh cua)))) thong cong dan than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - canh ((tranh cua) or (((manh cua) OR (doanh cua)))) thong cong dan than cao".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - canh ((tranh cua) or (((manh cua) OR (doanh cua)))) thong cong dan than cao*.