Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chau duoc do snippets" » "chau doc do snippets", "che duoc do snippets", "cuu duoc do snippets", "chau duoc dao snippets", "chau duoc co snippets", "chau duoc vo 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: (((("chau duoc 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: (((("chau duoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chau duoc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chau duoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.