Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phong ca cac snippets" » "phong cac cac snippets", "phong cai cac snippets", "phong va cac snippets", "phong cua cac 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 ca cac 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 ca cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong ca cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong ca cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.