Perhaps you should try some spelling variations:
"cho doi canh snippets" » "cho doi code snippets", "cho doi hanh snippets", "cho boi canh snippets", "cho do canh snippets", "cho moi canh snippets", "cuoc doi canh snippets", "cho tuoi 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 ("cho 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 ("cho doi canh snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cho doi canh snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cho doi canh snippets"))) or ("locating bug core snippets"))*.