Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao nhan doi snippets" » "giao nhan doi snippets", "ca nhan doi snippets", "tue nhan doi snippets", "tao nhan dai snippets", "tao nhan dot snippets", "tao nhan loai 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: (((("tao nhan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao nhan doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao nhan doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao nhan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.