Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phong mo le snippets" » "phong so le snippets", "thong mo le snippets", "phong cho le snippets", "phong mo len snippets", "phong do le snippets", "phong ho le 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: (((("phong mo le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phong mo le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong mo le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong mo le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.