Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua thong » cua thuong, cua khong, cua tong
duong van » duong va, luong va, trong van
tinh cua » trinh cua, sinh cua, tinh chat
dang van » hoang van, hang va
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu sang)) - hanh tinh cua thong ((duong van) OR (dang van)) tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu sang)) - hanh tinh cua thong ((duong van) OR (dang van)) tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu manh) or (chieu sang)) - hanh tinh cua thong ((duong van) OR (dang van)) tuan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu sang)) - hanh tinh cua thong ((duong van) OR (dang van)) tuan ban*.