Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xin lieu ve snippets" » "xin liu ve snippets", "binh lieu ve snippets", "jin liu ve snippets", "xin lieu va snippets", "xin hieu ve snippets", "xin lieu de 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: (((("xin lieu 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: (((("xin lieu ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xin lieu ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xin lieu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.