Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
hoc anh » hoc nganh, hoc nhanh, ngoc anh
hieu ve » hieu va, hieu van
ve tham » va tham, ve cham, vi tham
thuc xa » thuc xay, tuc xa, thuc va
xa hanh » xa thanh, xa khanh, va hanh
hanh di » hanh vi, hanh de, hang di
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (hoc anh)) ky nang xa hoi. hieu ve tham thuc xa hanh di ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (hoc anh)) ky nang xa hoi. hieu ve tham thuc xa hanh di ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (hoc anh)) ky nang xa hoi. hieu ve tham thuc xa hanh di ((cua triet) or (va triet))*.