Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao xuan can snippets" » "dao xuan code snippets", "do xuan can snippets", "ngo xuan can snippets", "dao van can snippets", "dao xuan cang snippets", "dao xuan tan snippets", "dao xuan chanh 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 xuan 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 xuan can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dao xuan can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao xuan can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.