Perhaps you should try some spelling variations:
khien dong » nhiet dong, dien dong, bien dong
thi khien » thi hien, thi chien, thi thien
manh hung » anh huong
trong van » trong cac
hung cua » huong cua, chung cua, khung cua
cua dung » cua dang, cua dong, qua dung
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: thi khien dong - manh hung cua dung trong van ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thi khien dong - manh hung cua dung trong van ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: thi khien dong - manh hung cua dung trong van ((toan cau) or (toan cao))*.