Perhaps you should try some spelling variations:
khap thong » phap thong, khau thong, khac thuong
khoa khap » khoa kham, khoa khac, kho khan
lenh tao » benh tai, benh lao, benh tam
duoc cac » cuoc cach, duoc chat, duong cac
cac khoa » cac khoan, cac khoi, dac khoa
lenh dao » lanh dao, benh dai, minh dao
dao muc » dao duc, dao tuc, danh muc
muc cac » tuc cac, duc cac, luoc cac
khoa he » hoa he, khoa hoc, khong he

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu lenh tao duoc cac khoa khap thong ) or ( tu lenh dao muc cac khoa he thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu lenh tao duoc cac khoa khap thong ) OR ( tu lenh dao muc cac khoa he thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu lenh tao duoc cac khoa khap thong ) or ( tu lenh dao muc cac khoa he thong ))*.