Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dinh duc cua snippets" » "dinh duc code snippets", "minh duc cua snippets", "ninh duc cua snippets", "tinh duc cua snippets", "dinh doc cua snippets", "dinh luc cua snippets", "dinh tuc cua 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: (((("dinh duc cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dinh duc cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dinh duc cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh duc cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.