Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhanh lang » nhanh quang, nhanh thang, nhan dang
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
thanh cao » thanh ca, thanh cac, thanh thao
cong van » cong vang, song van, cong tan
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((hanh tang) or (nhanh lang)) cua nhung ((cong van) OR (cong san)) thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh tang) OR (nhanh lang)) cua nhung ((cong van) OR (cong san)) thanh cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((hanh tang) or (nhanh lang)) cua nhung ((cong van) OR (cong san)) thanh cao*".