Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham do cu snippets" » "pham doi cu snippets", "pham mo cu snippets", "pham o cu snippets", "pham do cua snippets", "pham do tu snippets", "pham co cu 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 do cu 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 do cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham do cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham do cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.