Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc huong ve snippets" » "hoc thuong ve snippets", "hoc phuong ve snippets", "hoc luong ve snippets", "hoc duong ve snippets", "hoc cuong ve snippets", "hoc huong va 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: (((("hoc huong ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc huong ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc huong ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc huong ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.