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