Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu xa che snippets" » "hiem xa che snippets", "hieu va che snippets", "hieu ca che snippets", "hieu ba che snippets", "hieu la che 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: (((("hieu xa 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: (((("hieu xa che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu xa che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu xa che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.