Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"a thanh hieu snippets" » "a thanh thieu snippets", "a thanh hien snippets", "a thanh hiep snippets", "va thanh hieu snippets", "ha thanh hieu snippets", "ta thanh hieu snippets", "a thanh hieu 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: (((("a thanh hieu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a thanh hieu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( a thanh hieu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("a thanh hieu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.