Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do thuc canh snippets" » "do thuc hanh snippets", "do thu canh snippets", "do thuc cach snippets", "hoc thuc canh snippets", "dan thuc canh 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: (((("do thuc canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do thuc canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do thuc canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do thuc canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.