Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xang dan hoi snippets" » "xang dau hoi snippets", "tang dan hoi snippets", "dang dan hoi snippets", "xang dan hoc snippets", "xang dai hoi snippets", "xang dang khoi 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: (((("xang dan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xang dan hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xang dan hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xang dan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.