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