Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong dau do snippets" » "trong dam do snippets", "trong bau do snippets", "trong dan do snippets", "trong cau do snippets", "trong dau co snippets", "trong dao do 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: (((("trong dau do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong dau do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong dau do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong dau do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.