Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh nhung ho snippets" » "canh nhung ho snippets", "hanh nhung ho snippets", "anh hung ho snippets", "anh nhung hoc snippets", "anh nhung kho snippets", "anh nhung nho 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: (((("anh nhung ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh nhung ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh nhung ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh nhung ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.