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