Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai viet bot snippets" » "mai viet bot snippets", "dao viet bot snippets", "tai viet bot snippets", "dai viec bot snippets", "dai viet o snippets", "dai viet co 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: (((("dai viet bot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai viet bot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai viet bot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai viet bot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.