Perhaps you should try some spelling variations:
hanh thong » anh thong, hanh trong, hang thong
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
thong ung » thong dung, thong cung, thong vung
dung dong » dung cong, vung dong, dung trong
dong san » cong san, dong bang, dong von
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu sach)) - hanh thong ung dung dong san ((van ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - hanh thong ung dung dong san ((van ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sach)) - hanh thong ung dung dong san ((van ban) or (toan cao))*.