Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc trieu » hoc thieu, hoc tieu, hoc dieu
trinh vat » trinh van, trinh luat, sinh vat
trong dan » trong dang, trong san, trong tan
thanh lap » thanh san, phan lap, thanh hai
vat dung » van dung, va dung, viet dung
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 trieu tinh - hanh trinh vat dung trong dan ((thanh lap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trieu tinh - hanh trinh vat dung trong dan ((thanh lap) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: hoc trieu tinh - hanh trinh vat dung trong dan ((thanh lap) or (phan dau))*.