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