Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van chi chap snippets" » "van chi code snippets", "van thi chap snippets", "van chi chang snippets", "van chin cham snippets", "van chien chap snippets", "luan chi chap snippets", "van chat chap 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: (((("van chi chap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van chi chap snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van chi chap snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van chi chap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.