Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day thanh de snippets" » "dao thanh de snippets", "dat thanh de snippets", "da thanh de snippets", "day hanh de snippets", "day thanh ve snippets", "day thanh do 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 thanh de 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 thanh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day thanh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day thanh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.