Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phoi hoc can snippets" » "hoi hoc can snippets", "phoi thuoc can snippets", "hoa hoc can snippets", "phoi hoc dan snippets", "phoi hoc cao snippets", "phoi hoc cac snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("phoi hoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phoi hoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phoi hoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phoi hoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.