Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
luan ban » luan van, luan san, luan han
ban cong » bang cong, van cong, phan cong
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu sang)) - ((anh tang) OR (anh nang)) luan ban cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - ((anh tang) OR (anh nang)) luan ban cong manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sang)) - ((anh tang) OR (anh nang)) luan ban cong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - ((anh tang) OR (anh nang)) luan ban cong manh toan ban*.