Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
cong manh » cong danh, duong manh, cong thanh
doi lieu » duoc lieu, doi chieu, du lieu
tac dung » sach dung, xay dung, tin dung
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi lieu tinh - tac dung luan hung cong manh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - tac dung luan hung cong manh ((toan cau) OR (toan ban))*.