Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"anh danh xac snippets" » "anh anh xac snippets", "anh dang xac snippets", "anh dinh xac snippets", "anh dan xac snippets", "anh danh bac snippets", "anh dang xay 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: (((("anh danh xac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh danh xac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( anh danh xac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh danh xac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.