Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian viet e snippets" » "gian viet ve snippets", "gian viet o snippets", "gian viet 1 snippets", "giao viet e snippets", "gia viet e snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("gian viet e snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian viet e snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian viet e snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian viet e snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.