Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"boc trang du snippets" » "soc trang du snippets", "boc tran du snippets", "ngoc trang du snippets", "boc tang du snippets", "boc trung du snippets", "boc trang de 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: (((("boc trang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("boc trang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( boc trang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("boc trang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.