Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"so tuan do snippets" » "so tuan code snippets", "do tuan do snippets", "so tan do snippets", "so than do snippets", "so toan do snippets", "so truan doi snippets", "so quan doi 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: (((("python using java snippets") or ("so tuan do snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("so tuan do snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( so tuan do snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("so tuan do snippets"))) or ("locating bug core snippets"))*.