Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chap phap vo snippets" » "phap phat vo snippets", "phap phan vo snippets", "cua phap vo snippets", "chap phap mo snippets", "chap phap va snippets", "chap phap so 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: (((("chap phap vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chap phap vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chap phap vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chap phap vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.