Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham bao hoc snippets" » "pham giao hoc snippets", "pham van hoc snippets", "pham tai hoc snippets", "pham bai hoc snippets", "pham bao goc snippets", "pham bac hoc 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: (((("pham bao hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham bao hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham bao hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham bao hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.