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