Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoa cac xe snippets" » "khoa cac code snippets", "hoa cac xe snippets", "khoa cam xe snippets", "khoa can xe snippets", "khoa cac he snippets", "khoa cac ke snippets", "khoa cac le 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: (((("khoa cac xe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa cac xe snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoa cac xe snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa cac xe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.