Perhaps you should try some spelling variations:
"toc va pham snippets" » "toc van pham snippets", "toc va phat snippets", "toc va phap snippets", "hoc va pham snippets", "toc ta pham snippets", "tuc va pham snippets", "toc va pham slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("python using a snippets") or ("toc va pham snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("toc va pham snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( toc va pham snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("toc va pham snippets"))) or ("locating bug code snippets"))*.