Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi anh don snippets" » "thi anh code snippets", "thi hanh don snippets", "thi thanh don snippets", "thich anh don snippets", "thi anh dong snippets", "thi anh son snippets", "thi anh doc 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: (((("thi anh don snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi anh don snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi anh don snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi anh don snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.