Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham hoi cua snippets" » "pham hoai cua snippets", "pham hoa cua snippets", "cham hoi cua snippets", "pham hoi chuc 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 hoi cua 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 hoi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham hoi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham hoi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.