Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang do co snippets" » "hang doi co snippets", "dang do co snippets", "hang di co snippets", "hang do cao snippets", "hang vo co snippets", "hang do bo 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 do co 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 do co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang do co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang do co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.