Perhaps you should try some spelling variations:
nghiep lao » nghiep bao, nghiep lam, nghiep luan
dich hoc » sinh hoc, hinh hoc, tinh hoc
lao dong » ha dong, van dong
co doanh » cho doanh, cao doanh, hoa doanh
so doanh » so danh, su doanh, hoa doanh
khoa hoc » hoa hoc
van tuan » van quan, van ban, anh tuan
tuan van » luan van, tran van, tan van
tu dich » te dich, chu dich, hut dich
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
hoi van » hoi va, hoi dan, hai van

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dich hoc tap, nghiep lao dong ((co doanh) or (so doanh)) khoa hoc mai hoi van tuan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dich hoc tap, nghiep lao dong ((co doanh) OR (so doanh)) khoa hoc mai hoi van tuan van.
• Adding a wildcard symbol may retrieve word variants: tu dich hoc tap, nghiep lao dong ((co doanh) or (so doanh)) khoa hoc mai hoi van tuan van*.