Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong tan ca snippets" » "cong tan code snippets", "cong tac ca snippets", "cong san ca snippets", "cong thanh ca snippets", "cong tan cua snippets", "cong tang ca snippets", "cong dan ca 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 tan ca 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 tan ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong tan ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tan ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.