Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day mo hoc snippets" » "dau mo hoc snippets", "cay mo hoc snippets", "da mo hoc snippets", "day mon hoc snippets", "day co hoc 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 mo hoc 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 mo hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day mo hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day mo hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.