Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thieu sach » chieu sach, thien hach, hieu cach
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
va phuong » va thuong, cac phuong
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
than ban » thanh ban, than man, nhuan ban
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - hanh trinh va phuong cong dan ((than ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trinh va phuong cong dan ((than ban) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trinh va phuong cong dan ((than ban) or (toan ban))*.