Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"rut hoc cung snippets" » "rut hoc ung snippets", "rut hoc cong snippets", "rut hoc dung snippets", "virut hoc cung 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: (((("rut hoc cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("rut hoc cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( rut hoc cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("rut hoc cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.