Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham lan ke snippets" » "pham luan ke snippets", "pham van ke snippets", "phan lan ke snippets", "pham lang ke snippets", "pham ban ke snippets", "pham dan ke 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 lan ke 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 lan ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham lan ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham lan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.