Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong hoc chi snippets" » "cong hoc code snippets", "dong hoc chi snippets", "cong hoa chi snippets", "cong coc chi snippets", "cong hoc chia snippets", "cong hoc cho snippets", "cong hoc chu 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 hoc chi 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 hoc chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong hoc chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hoc chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.