Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim nam nghe snippets" » "kim nang nghe snippets", "kim van nghe snippets", "kim nham nghe snippets", "kim ngan nghe snippets", "khme nam nghe 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 nam nghe 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 nam nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim nam nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim nam nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.