Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"kho thi lan snippets" » "khe thi lan snippets", "khi thi lan snippets", "khoa thu lan snippets", "kho thi hanh snippets", "kho thi nang snippets", "kho thi lien snippets", "kho thi lan slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("kho thi lan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho thi lan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho thi lan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho thi lan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.