Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong tu xe snippets" » "cong tu code snippets", "cong ty xe snippets", "cong cu xe snippets", "dong tu xe snippets", "cong thu xe snippets", "cong tu le snippets", "cong tu te 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 tu xe 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 tu xe snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong tu xe snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tu xe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.