Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong coc son snippets" » "cong coc code snippets", "cong cuoc son snippets", "cong cac son snippets", "cong co son snippets", "cong soc son snippets", "cong cuoc song snippets", "cong ngoc son 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: (((("cong coc son snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong coc son snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong coc son snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong coc son snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.