Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam khi cua snippets" » "lam kho cua snippets", "ham khai cua snippets", "lam khac cua snippets", "lam chi cua snippets", "lam thai 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: (((("lam khi 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: (((("lam khi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam khi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam khi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.