Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao trinh ve snippets" » "dao trinh code snippets", "dao tinh ve snippets", "tao trinh ve snippets", "dan trinh ve snippets", "dao trinh he snippets", "dao trinh va snippets", "dao trinh vi 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: (((("dao trinh ve snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao trinh ve snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dao trinh ve snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao trinh ve snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.