Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu duoc co snippets" » "thu duc co snippets", "thu quoc co snippets", "nhu duoc co snippets", "thu duoc hoc snippets", "thu duong co snippets", "thu duoc hoi 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: (((("thu duoc co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu duoc co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu duoc co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu duoc co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.