Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat lieu de snippets" » "nhat bieu de snippets", "nhat hieu de snippets", "nhat chieu de snippets", "nhat lieu den snippets", "nhat lieu da snippets", "nhat lieu ve 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: (((("nhat lieu de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat lieu de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat lieu de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat lieu de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.