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