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