Perhaps you should try some spelling variations:
phuong tien » phuong trinh
dung phuong » dung thuong, bang phuong, dung chung
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
tien toan » thien toan, dien toan, tien thanh
trinh ve » trinh he, trinh va, trinh vi
toan cau » toan cao, toan ban, toan tap
ve dung » ve duong, ve rung, va dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot chieu sach - canh trinh ve dung phuong tien toan cau~.
• Adding a wildcard symbol may retrieve word variants: mot chieu sach - canh trinh ve dung phuong tien toan cau*.