Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chon cac di snippets" » "cho cac di snippets", "thong cac di snippets", "hoc cac di snippets", "chon cac dai snippets", "chon cac dia snippets", "chon cac doi 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: (((("chon cac 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: (((("chon cac di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chon cac di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chon cac di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.