Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
hanh hang » thanh hang, hang hang, hanh han
ho chieu » theo chieu, doi chieu, mot chieu
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban
doi chi » doi khi

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) OR (hoc thieu))) or (doi chi)) sach - hanh hang va nhung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (hoc thieu))) OR (doi chi)) sach - hanh hang va nhung cong san toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((ho chieu) OR (hoc thieu))) or (doi chi)) sach - hanh hang va nhung cong san toan ban*".