Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho cong co snippets" » "khoa cong co snippets", "khoe cong co snippets", "cho cong co snippets", "kho dong co snippets", "kho cong cu snippets", "kho cong so 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: (((("kho cong 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: (((("kho cong co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho cong co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho cong co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.