Perhaps you should try some spelling variations:
thong quang » thong quan, thong qua, luong quang
quang nhung » quang hung, quan nhung, quang phuong
nhung cuong » nhung cong, hung cuong, nhung chong
hanh thong » anh thong, hanh trong, hang thong
thiet yeu » thiet ke, theo yeu
yeu tinh » yeu tin, lieu tinh, kieu tinh
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: thiet yeu tinh - hanh thong quang nhung cuong linh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thiet yeu tinh - hanh thong quang nhung cuong linh ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: thiet yeu tinh - hanh thong quang nhung cuong linh ((toan cau) or (toan ban))*.