Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua cong noi snippets" » "cua cong noi snippets", "qua song noi snippets", "va cong noi snippets", "qua cong nhoi snippets", "qua cong goi snippets", "qua cong soi 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 cong noi 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 cong noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua cong noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua cong noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.