Perhaps you should try some spelling variations:
"thanh cac che snippets" » "hanh cac che snippets", "thanh bac che snippets", "thanh ca che snippets", "thanh cac he snippets", "thanh cac chien snippets", "thanh cac chat snippets"
"hang java java snippets" » "hang va java 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: (((("thanh cac che snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thanh cac che snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh cac che snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh cac che snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.