Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dac khao mon snippets" » "va khao mon snippets", "dac cho mon snippets", "dac nhan mon snippets", "dac hao mon snippets", "dac nhap mon snippets", "dac khao noi 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: (((("dac khao mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dac khao mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dac khao mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac khao mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.