Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong von co snippets" » "luong van co snippets", "luong vuong co snippets", "luong cong co snippets", "luong con co snippets", "luong von cong 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: (((("luong von 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: (((("luong von co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong von co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong von co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.