Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chi cua du snippets" » "chi cua code snippets", "chi cuc du snippets", "khi cua du snippets", "cuoi cua du snippets", "chi cua duc snippets", "chi cua ndu snippets", "chi cua su 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: (((("chi cua du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi cua du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chi cua du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi cua du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.