Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh tu doi snippets" » "danh tu code snippets", "anh tu doi snippets", "hanh tu doi snippets", "doanh thu doi snippets", "danh tu do snippets", "danh te doi snippets", "danh tu di 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 tu doi 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 tu doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( danh tu doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh tu doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.