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