Perhaps you should try some spelling variations:
tranh nghiem » trac nghiem, trach nhiem, trinh nghien
trinh nghiep » trinh nghien, trinh nghe, trinh ghep
hanh trinh » hanh chinh
nghiep pho » nghiep nho, nghiep cho, nghiep phu
thu hanh » thuc hanh, thu thanh, thuy hanh
te canh » ve canh, te danh, re canh
pho hoc » phoi hoc, cho hoc, pho ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te canh tranh nghiem _ hoc ) or ( thu hanh trinh nghiep pho hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te canh tranh nghiem _ hoc ) OR ( thu hanh trinh nghiep pho hoc ))*.