Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doc hanh con snippets" » "doc hanh code snippets", "hoc hanh con snippets", "duc hanh con snippets", "doi hanh con snippets", "doc hanh cong snippets", "doc thanh cong snippets", "doc nhanh cong 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: (((("doc hanh con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc hanh con snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doc hanh con snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc hanh con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.