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