Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao khoi can snippets" » "dao khoi code snippets", "tao khoi can snippets", "dao thoi can snippets", "dang khoi can snippets", "dao khoa can snippets", "dao khoi nang snippets", "dao hoc can 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 khoi can 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 khoi can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dao khoi can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao khoi can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.