Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
hanh trinh » canh tranh, hanh chinh
thuat dung » thuat hung, thuat ung, thuat xung
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
doc hieu » toc thieu, hoc thieu, hoc hien
cong san » cong tac
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: ((theo chu) or (doc hieu)) sach - hanh trinh thuat dung cong san ((van ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (doc hieu)) sach - hanh trinh thuat dung cong san ((van ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (doc hieu)) sach - hanh trinh thuat dung cong san ((van ban) or (toan cao))*.