Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu thi cai snippets" » "thuc thi cai snippets", "thu thai cai snippets", "thuy thi cai snippets", "thu thi mai snippets", "thu thi hai snippets", "thu thi dai 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 thi cai 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 thi cai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu thi cai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu thi cai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.