Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
tranh qua » tranh cua, thanh qua, trinh qua
qua trong » quan trong, qua trinh, qua song
toan cao » toan ban
toan tap » toan 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: ((doi chi) or (hoc thieu)) sach - canh tranh qua trong cong thanh ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (hoc thieu)) sach - canh tranh qua trong cong thanh ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (hoc thieu)) sach - canh tranh qua trong cong thanh ((toan cao) or (toan tap))*.