Perhaps you should try some spelling variations:
phuong tinh » phuong trinh, phuong binh, khuong tinh
chieu sach » chinh sach, chiet tach, chieu sang
cua phuong » cuu phuong, cuc phuong, luan phuong
ho chieu » theo chieu, hoc thieu, doi chieu
chinh tu » chinh ta, chinh su, chinh du
toan ban » van ban
tu cua » hu cua, vu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh chinh tu cua phuong tinh ((((toan cao) or (toan ban))) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh chinh tu cua phuong tinh ((((toan cao) OR (toan ban))) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh chinh tu cua phuong tinh ((((toan cao) or (toan ban))) or (toan tap))*.