Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri dau cham snippets" » "tri cau cham snippets", "tri dau thau snippets", "tri va cham snippets", "tri du cham snippets", "tri dac cham snippets", "thi dau cham 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: (((("tri dau cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri dau cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri dau cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri dau cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.