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