Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh ca du snippets" » "danh ca code snippets", "dan ca du snippets", "doanh cua du snippets", "danh cho du snippets", "danh cac du snippets", "danh ca dua snippets", "danh cua du 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: (((("danh ca 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: (((("danh ca du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( danh ca du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh ca du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.