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