Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
trung tuan » trung thanh, trung tam, tran tuan
thong cong » trong cong, tong cong, thong thong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
dung cua » dung luan, dung cho
toan tap » 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: ho ((chieu sang) OR (chieu sach)) - hanh ((dung cua) or (trung tuan)) thong cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - hanh ((dung cua) OR (trung tuan)) thong cong thanh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu sach)) - hanh ((dung cua) or (trung tuan)) thong cong thanh toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu sach)) - hanh ((dung cua) or (trung tuan)) thong cong thanh toan tap*.