Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chap phap di snippets" » "phap phat di snippets", "phap phan di snippets", "cua phap di snippets", "chap phap dinh snippets", "chap phap dich snippets", "chap phap dien 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 di 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 di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chap phap di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chap phap di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.