Perhaps you should try some spelling variations:
nhan thong » nhan trong, nha thong, nhan khong
trong tinh » truong tinh, trong kinh, trong sinh
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
toan cau » toan cao, toan ban, toan tap
ke dung » ke duong, ke ung, te dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - nhan thong ke dung trong tinh toan cau~.
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - nhan thong ke dung trong tinh toan cau*.