Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cau cong du snippets" » "cau cong code snippets", "cac cong du snippets", "cuu cong du snippets", "cao cong du snippets", "cau cong dau snippets", "cau cong duc snippets", "cau cong duy 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: (((("cau cong du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau cong du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cau cong du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau cong du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.