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