Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
trung pha » trung phan, trung phat, trung ha
pha nhung » phai nhuong, tham nhung, phan chung
cong san » cong tac
toan cau » toan cao, toan tai
toan ban » van ban

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 - hanh trung pha nhung cong san ((toan cau) or (((toan tap) OR (toan ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trung pha nhung cong san ((toan cau) OR (((toan tap) OR (toan ban)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh trung pha nhung cong san ((toan cau) or (((toan tap) OR (toan ban))))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trung pha nhung cong san ((toan cau) or (((toan tap) OR (toan ban))))*.