Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chua dan cac snippets" » "cua dan cac snippets", "chua dac cac snippets", "chua dau cac snippets", "chua dan cach snippets", "chua dang cac snippets", "chua dan ca 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 dan cac 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 dan cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua dan cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua dan cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.