Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"peng vu thu snippets" » "peng su thu snippets", "phung vu thu snippets", "peng vu thi snippets", "peng vu tru snippets", "peng va thu snippets", "peng vu thu 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: (((("peng vu thu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("peng vu thu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( peng vu thu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("peng vu thu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.