Perhaps you should try some spelling variations:
trong tan » trong quan, trong cac, trong ca
ganh nang » anh nang, nganh nong, van nang
hoc dien » hoc hien, hoc vien, hoc dieu
dien anh » tieng anh, dien dan
nang duc » nang luc, nang doc, nang du
duc dung » duc hung, duc cuong, duc trung
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: hoc dien anh - ganh nang duc dung trong tan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dien anh - ganh nang duc dung trong tan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc dien anh - ganh nang duc dung trong tan ((toan cau) or (toan ban))*.