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