Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dinh viet du snippets" » "dinh viet code snippets", "ninh viet du snippets", "danh viet du snippets", "trinh viet du snippets", "dinh viet duc snippets", "dinh viet duy snippets", "dinh viet tu 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 viet du 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 viet du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dinh viet du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh viet du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.