Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
thang cua » thong cua, hang cua, than cua
hang cong » dang cong, hang nong, bang cong
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
dan can » dan chan, dan canh, dan ca
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 ((hieu manh) or (chieu sang)) - hanh ((thang cua) or (tang cua)) hang cong dan can ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sang)) - hanh ((thang cua) OR (tang cua)) hang cong dan can ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sang)) - hanh ((thang cua) or (tang cua)) hang cong dan can ban*.