Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim quan che snippets" » "kim quang che snippets", "kieu quan che snippets", "kim ngan che snippets", "kim quan he snippets", "kim han che snippets", "kim quan ha 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: (((("kim quan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kim quan che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim quan che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim quan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.