Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gap hoc can snippets" » "phap hoc can snippets", "giup hoc can snippets", "gap phoi can snippets", "gap hoc dan snippets", "gap hoc cao snippets", "gap 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: (((("gap 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: (((("gap hoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gap hoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gap hoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.