Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh van chi snippets" » "danh van code snippets", "doanh van chi snippets", "dang van chi snippets", "dinh van chi snippets", "danh van chien snippets", "danh luan chi snippets", "danh van chat 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 van chi 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 van chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( danh van chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh van chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.