Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"den hoc cau snippets" » "den hoc code snippets", "dien hoc cau snippets", "dan hoc cau snippets", "de hoc cau snippets", "den hoc cao snippets", "den hoc cac snippets", "den hoc can 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: (((("python using java snippets") or ("den hoc cau snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("den hoc cau snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( den hoc cau snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("den hoc cau snippets"))) or ("locating bug core snippets"))*.