Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
hanh trinh » canh tranh, hanh chinh
chieu sach » chinh sach, chiet tach, chieu sang
phuong dan » phuong danh, phuong doan, huong dan
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh van » trinh han, trinh quan, trinh toan
van dung » van dong, xay dung, tin dung
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) OR (chieu sach)) - hanh trinh van dung phuong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) OR (chieu sach)) - hanh trinh van dung phuong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) OR (chieu sach)) - hanh trinh van dung phuong dan toan cau*.