Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cao dan soc snippets" » "cao dan code snippets", "cao dang soc snippets", "cao danh soc snippets", "cac dan soc snippets", "cao dan toc snippets", "cao dan hoc snippets", "cao dan so snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cao dan soc snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao dan soc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cao dan soc snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao dan soc snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.