Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phong cho dk snippets" » "phong chong dk snippets", "dong cho dk snippets", "luong cho dk snippets", "phong cho du 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 cho dk 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 cho dk snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong cho dk snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong cho dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.