Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang khac mo snippets" » "hang khoa mo snippets", "hang hai mo snippets", "hang ha mo snippets", "hang khac do snippets", "hang khac co snippets", "hang khai mo 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: (((("hang khac mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang khac mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang khac mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang khac mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.