Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc vu can snippets" » "phuc vu van snippets", "phuc vu cao snippets", "phuc vu ban snippets", "thuc vu can snippets", "phu vu can 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: (((("phuc vu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc vu can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc vu can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc vu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.