Perhaps you should try some spelling variations:
khan thong » khap thong, khau thong, nhan thong
kham thong » khap thong, khau thong, pham thuong
truc thuy » truc thuoc, thuc thuc, thu thuy
thuy bach » huy bach, thuy anh, thi bach
bach khoa » anh khoa
khoa kham » kho khan, khoa than
cach thuc » anh thuc, cac thu
khoi khan » kho khan, khoi khong, khoa than
cac khoi » cac thoi, cac khoan, cach thoi
ba truc » cau truc, ba trung, dai truc
tu cach » tu cac
thuc va » thuc vat, thuc dan, thuc day
vu ba » vu ban, vu bao, vu bat

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu ba truc thuy bach khoa kham thong ) or ( tu cach thuc va cac khoi khan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu ba truc thuy bach khoa kham thong ) OR ( tu cach thuc va cac khoi khan thong ))*.