Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cot mat cua snippets" » "cot mat code snippets", "cot hat cua snippets", "co mat cua snippets", "con mat cua snippets", "cot ma cua snippets", "cot manh cua snippets", "cot mang cua 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: (((("cot mat cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cot mat cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cot mat cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cot mat cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.