Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
tran chau » tranh chap, tran huu
trang cho » trong cho, trang o, sang cho
theo rau » theo dau, theo mau, theo chu
rau sach » cau sach, hau sach, khau sach
trinh va » trinh van, trinh vat, trinh ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo rau sach - hanh trinh va ((hang cong) OR (bang cong)) dang ((tran chau) or (trang cho))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo rau sach - hanh trinh va ((hang cong) OR (bang cong)) dang ((tran chau) OR (trang cho)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo rau sach - hanh trinh va ((hang cong) OR (bang cong)) dang ((tran chau) or (trang cho))".
• Adding a wildcard symbol may retrieve word variants: theo rau sach - hanh trinh va ((hang cong) OR (bang cong)) dang ((tran chau) or (trang cho))*.