Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sinh dan hoc snippets" » "sinh danh hoc snippets", "sinh san hoc snippets", "binh dan hoc snippets", "sinh van hoc snippets", "sinh dan toc snippets", "sinh dai 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: (((("sinh dan 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: (((("sinh dan hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sinh dan hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sinh dan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.