Perhaps you should try some spelling variations:
sudan debt » sudan der, sudan west
hong guan » thong guan, cheng guan, hong gang
debt era » debt eva, debt a
era kong » era among
yang xi » yang yi, yang jui
yang ka » yang fan, yang yao
3 sudan » _ sudan, im sudan, _ sudano
ad 3 » a 3, ad _, d 3
tan » than

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yang xi) or (yang ka))) or (yang di))ad 3 sudan debt era kong ((hong guan) OR (hong tan)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang xi) OR (yang ka))) OR (yang di))ad 3 sudan debt era kong ((hong guan) OR (hong tan)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang xi) or (yang ka))) or (yang di))ad 3 sudan debt era kong ((hong guan) OR (hong tan)) ;*".