Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day thi canh snippets" » "day thi hanh snippets", "day thi anh snippets", "day thi oanh snippets", "dan thi canh snippets", "dao thi canh snippets", "dam 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: (((("day thi canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("day thi canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day thi canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day thi canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.