Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
canh trinh » canh tranh, hanh trinh, canh tinh
hoc thieu » toc thieu, hoc hien
trinh ve » trinh he, trinh va, trinh vi
ve trong » le trong, ke trong, te trong
cong san » cong tac
san phan » san pham, van phan, sat phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu manh - canh trinh ve trong cong san phan dau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - canh trinh ve trong cong san phan dau*.