Perhaps you should try some spelling variations:
phap thuc » phap thu, phap hoc, phap tu
danh yen » danh tuyen, dan huyen, danh kien
thuc day » thuc dan, thuc vat
tu sach » thu sach, su sach, te sach
danh te » danh tu, danh het
ve phap » va phap, de phap, ve phan
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
vu sach » vu bach, su sach, vu khach
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 (vu sach)) ty nang xa hoi. hieu ve phap thuc day ((danh te) OR (danh yen)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (vu sach)) ty nang xa hoi. hieu ve phap thuc day ((danh te) OR (danh yen)) cua te~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) ty nang xa hoi. hieu ve phap thuc day ((danh te) OR (danh yen)) cua te*.