Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua hang do snippets" » "cua hang do snippets", "mua hang do snippets", "qua mang do snippets", "qua hang doi snippets", "qua dang do snippets", "qua hang di 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 do 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 do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua hang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua hang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.