Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, thi chieu
hanh hang » thanh hang, hang hang, hanh han
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, thi chieu
hang cua » mang cua, hang ca, huong cua
cong tac » cong ty
tac han » tac nhan, tac ha, tac can
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: ((mot chieu) or (((doi chieu) OR (ho chieu)))) sach - hanh hang cua thong cong tac han tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (((doi chieu) OR (ho chieu)))) sach - hanh hang cua thong cong tac han tai*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (((doi chieu) OR (ho chieu)))) sach - hanh hang cua thong cong tac han tai*".