Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
hanh trang » thanh trung, canh tranh, hanh trinh
trang tuan » tran tuan, trung tuan, trong tuan
tuan cong » thuan cong, luan cong, tran cong
trinh van » trinh han, trinh quan, trinh toan
van van » tan van, san van, van vat

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 sach) OR (chieu sang)) - hanh trang tuan cong trinh van van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) OR (chieu sang)) - hanh trang tuan cong trinh van van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) OR (chieu sang)) - hanh trang tuan cong trinh van van ban*.