Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
nhung cong » dung cong, thong cong, hang cong
trung dap » trung cap, trung dai, trung dam
dap nhung » vap nhung, va nhung, dap ung
khoan cam » khoa cam, khoan va, phan cam
ho chieu » hoc thieu, doi chieu, mot chieu
cong san » cong tac
than cua » nhan cua, thai cua, ban cua

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 (theo chieu)) sach - thanh trung dap nhung cong san ((than cua) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - thanh trung dap nhung cong san ((than cua) OR (khoan cam)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - thanh trung dap nhung cong san ((than cua) or (khoan cam))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sach - thanh trung dap nhung cong san ((than cua) or (khoan cam))*.