Perhaps you should try some spelling variations:
thuong thong » thong thong, thuong trong, thuong phuong
hanh huong » thanh huong, anh huong, manh huong
cua thuong » cua truong, cua phuong, ca thuong
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
huong cua » dung cua
thong tan » thong than, thong tran, thong tin
han tap » toan tap, nhan tai, nhan tao
han tai » hang tai, nhan tai, van tai

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) or (hoc thieu)) sach - hanh huong cua thuong thong tan ((han tap) OR (han tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) sach - hanh huong cua thuong thong tan ((han tap) OR (han tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc thieu)) sach - hanh huong cua thuong thong tan ((han tap) OR (han tai))".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc thieu)) sach - hanh huong cua thuong thong tan ((han tap) OR (han tai))*.