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