Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong ti cho snippets" » "cong ti code snippets", "cong ty cho snippets", "cong li cho snippets", "cong tu cho snippets", "cong te cho snippets", "cong tinh cho snippets", "cong thi choi 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: (((("cong ti cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong ti cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong ti cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong ti cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.