Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chu dan cua snippets" » "chu dan code snippets", "chua dan cua snippets", "chu han cua snippets", "chu van cua snippets", "chu dan ca snippets", "chu ban cua snippets", "chu dai 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: (((("chu dan 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: (((("chu dan cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chu dan cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu dan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.