Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
phuong manh » phuong anh, phung manh, phuong danh
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
manh toan » thanh toan, anh tuan, tinh toan
tung bay » vung bay, tuong ban, tung dan
toan ban » van ban
tung ap » tang ap, tung dan, tung mai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - manh ((tung ap) OR (tung bay)) dung phuong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - manh ((tung ap) OR (tung bay)) dung phuong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - manh ((tung ap) OR (tung bay)) dung phuong manh toan ban*.