Perhaps you should try some spelling variations:
khoan phan » khoan phai, khoan thanh, hoa phan
thai thong » thoai thong, thai hong, thai phong
phan cong » thanh cong
sach phat » sach nha, sach tham, cach pha
dao thuc » dan thuc, dao tuc, do thuc
thuc cac » thuc cach, tuc cac, phuc cac
phat thu » phap thu, pham thu, phai thu
thu oanh » thuy oanh, thi oanh, thu canh
oanh hoa » danh hoa, hanh hoa, doanh khoa
hoa thai » hong thai, hoa phan, hoa chat
te lanh » te danh, te lan, tu lanh
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te lanh dao thuc cac khoan phan cong ) or ( te sach phat thu oanh hoa thai thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te lanh dao thuc cac khoan phan cong ) OR ( te sach phat thu oanh hoa thai thong )).
• Adding a wildcard symbol may retrieve word variants: (( te lanh dao thuc cac khoan phan cong ) or ( te sach phat thu oanh hoa thai thong ))*.