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