Perhaps you should try some spelling variations:
khoan phap » khoan phai, khoa phau, han phap
phap chong » phap phong, phap cong, pham hong
phan thong » phan thuong, phan hong, phan tong
thai thuy » thi thuy, thanh thuy, thuat thuy
thuy cach » thuc cach, thuy canh, thuy anh
hanh thi » nhanh thi, hanh thoi, anh thi
thi thuc » thai thuc, thi thu, thi thuy
thuc cac » thuc cach, tuc cac, phuc cac
san thai » sac thai, ban thai, van thai
tu hanh » du hanh, lu hanh, thuc hanh
cach ha » cach pha, bach ha, sach ha
ha phan » hoa phan, hai phan, va phan
tu san » thu san, tu ban, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu hanh thi thuc cac khoan phap chong ) or ( tu san thai thuy cach ha phan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu hanh thi thuc cac khoan phap chong ) OR ( tu san thai thuy cach ha phan thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu hanh thi thuc cac khoan phap chong ) or ( tu san thai thuy cach ha phan thong ))*.