Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhu cao cong snippets" » "nhu cao code snippets", "nhu cac cong snippets", "nhu cao dang snippets", "nhu cua cong snippets", "nha cao cong snippets", "nhu cau cong snippets", "nghe cao cong snippets"
"python using java snippets" » "python using data 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: (((("nhu cao cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhu cao cong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhu cao cong snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhu cao cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.