Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao cuu mot snippets" » "cham cuu mot snippets", "chao chu mot snippets", "kho cua mot snippets", "khao cua mot snippets", "khao cuu mo snippets", "khao huu mot 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: (((("khao cuu mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khao cuu mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao cuu mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao cuu mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.