Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thit cong bo snippets" » "thi cong bo snippets", "thien cong bo snippets", "thuat cong bo snippets", "thit cong bao snippets", "thit cong so snippets", "thit cong co 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: (((("thit cong bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thit cong bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thit cong bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thit cong bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.