Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua hang vo snippets" » "cua hang vo snippets", "mua hang vo snippets", "qua mang vo snippets", "qua hang va snippets", "qua hang vi snippets", "qua hang ve 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: (((("qua hang vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua hang vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua hang vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua hang vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.