Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac nganh du snippets" » "hoc nganh du snippets", "cac nganh dau snippets", "cac nganh duoc snippets", "cac nganh dieu 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: (((("cac nganh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac nganh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac nganh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac nganh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.