Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham cac che snippets" » "phan cac che snippets", "pham ca che snippets", "pham can che snippets", "pham cac he snippets", "pham cac chien snippets", "pham cac chat 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 cac che 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 cac che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham cac che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham cac che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.