Perhaps you should try some spelling variations:
chua triet » cua triet, chua trieu, chuan thiet
chua thiet » chuan thiet, cua thiet, thua thiet
pham thuc » phap thuc, pham chuc, nham thuc
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty dang » ty xang, ky dang, ty hang
dang xa » dang xay, lang xa, dang ha
hieu vu » hieu va, hieu ve, hieu su
vu pham » su pham, vi pham, vu kham
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty dang xa hoi. hieu vu pham thuc dan hanh va ((chua triet) or (chua thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty dang xa hoi. hieu vu pham thuc dan hanh va ((chua triet) OR (chua thiet)).
• Adding a wildcard symbol may retrieve word variants: te sach ty dang xa hoi. hieu vu pham thuc dan hanh va ((chua triet) or (chua thiet))*.