Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien danh » thien danh, hien hanh, hien nhanh
ttoan tap » toan tai, toan lap, toan tam
trong ca » trong nha
toan tap » toan ban
tung va » trung va, tuong va, dung va
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien danh - thanh tung va dung ((trong ca) or (trong cac)) ((ttoan tap) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien danh - thanh tung va dung ((trong ca) OR (trong cac)) ((ttoan tap) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - thanh tung va dung ((trong ca) or (trong cac)) ((ttoan tap) or (toan tap))*.