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