Perhaps you should try some spelling variations:
phuong thanh » phong thanh, truong thanh, phuong thao
dung phuong » dung thuong, bang phuong, dung chung
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, hanh mang, hanh tung
ho chieu » theo chieu, hoc thieu, doi chieu
anh tang » anh bang, anh dang, anh nang
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
va dung » van dung, va duong, vat dung

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 tang) or (anh tang)) va dung phuong thanh ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh tang) OR (anh tang)) va dung phuong thanh ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((hanh tang) or (anh tang)) va dung phuong thanh ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh tang) or (anh tang)) va dung phuong thanh ((toan cau) OR (toan tap))*.