Perhaps you should try some spelling variations:
cong thuoc » cong thuc, dong thuoc, long thuoc
cach thuc » anh thuc, cac thu
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thuc tap » tuc tap, thuc thai, thuc vat
cuu tong » cuu cong, cuu tinh, huu tung
thuoc la » thuoc ma, thuoc va, thuoc tai
van nhan » van phan, van thanh, danh nhan
nhan van » nhan dan, nhan va, phan van
tu cach » tu cac
la va » la via, lua va, ly va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach thuc tap, nghien ((cuu tong) or (cuu mo)) hoc thanh cong thuoc la va van nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thuc tap, nghien ((cuu tong) OR (cuu mo)) hoc thanh cong thuoc la va van nhan van.
• Adding a wildcard symbol may retrieve word variants: tu cach thuc tap, nghien ((cuu tong) or (cuu mo)) hoc thanh cong thuoc la va van nhan van*.