Perhaps you should try some spelling variations:
phong thanh » phan thanh, dong thanh, cong thanh
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
thanh toan » thanh hoa, thanh san, tinh toan
cua tong » cua dong, cua nong, cua song
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - manh trung ((cua tong) or (cua cong)) phong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - manh trung ((cua tong) OR (cua cong)) phong thanh toan tap.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - manh trung ((cua tong) or (cua cong)) phong thanh toan tap*.