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