Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van canh da snippets" » "van canh code snippets", "van anh da snippets", "van hanh da snippets", "van manh da snippets", "van canh dan snippets", "van can da snippets", "van canh va 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: (((("van canh da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van canh da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van canh da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van canh da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.