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