Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xuan thu hoi snippets" » "xuan thuy hoi snippets", "tuan thu hoi snippets", "luan thuc hoi snippets", "xuan thu hoai snippets", "xuan thu phoi snippets", "xuan thu hai 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: (((("xuan thu 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: (((("xuan thu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xuan thu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuan thu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.