Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat tu cua snippets" » "nhat tu cua snippets", "chay tu cua snippets", "chat huu cua snippets", "chat hu cua snippets", "chat vu 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: (((("chat tu 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: (((("chat tu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat tu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat tu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.