Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tra cau chap snippets" » "tra cau code snippets", "tra cau cham snippets", "tra cau chan snippets", "tra cau phap snippets", "tra sau chap snippets", "ta cau chap snippets", "tra cuu 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: (((("tra cau 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: (((("tra cau chap snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tra cau chap snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra cau chap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.