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