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