Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con ho cua snippets" » "con cho cua snippets", "cong ho cua snippets", "can ho cua snippets", "con hoc cua snippets", "con hoi cua snippets", "con hoa cua 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: (((("con ho cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con ho cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con ho cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con ho cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.