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