Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khuc ma cua snippets" » "khuc ca cua snippets", "thuc ma cua snippets", "thuoc ma cua snippets", "khuc manh cua snippets", "khuc mang 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: (((("khuc ma 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: (((("khuc ma cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khuc ma cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khuc ma cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.