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