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