Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong tao con snippets" » "cong tao code snippets", "cong tac con snippets", "cong tan con snippets", "cong bao con snippets", "cong cao cong snippets", "cong vao cong snippets", "cong tao dong 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 tao con 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 tao con snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong tao con snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tao con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.