Perhaps you should try some spelling variations:
phap thuc » phap thu, phap hoc, phap tu
thuc day » thuc dan, thuc vat
day manh » van manh, duc manh, ha manh
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve phap » va phap, de phap, ve phan
manh de » hanh de, manh le, menh de
de cua » le cua, te cua, dieu cua
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty nang xa hoi. hieu ve phap thuc day manh de cua te~.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ty nang xa hoi. hieu ve phap thuc day manh de cua te*.