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