Perhaps you should try some spelling variations:
ke thuong » te thuong, le thuong, khen thuong
ky thuong » va thuong, tu thuong, te thuong
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
sach ty » sach y, sach tu, sach thu
va hanh » van hanh, va danh, ban hanh
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
vu sach » vu bach, su sach, vu khach
ki su » ky su

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty nang xa hoi. hieu ((ke thuong) OR (ky thuong)) dau ((va hanh) or (va thanh)) ki su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang xa hoi. hieu ((ke thuong) OR (ky thuong)) dau ((va hanh) OR (va thanh)) ki su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang xa hoi. hieu ((ke thuong) OR (ky thuong)) dau ((va hanh) or (va thanh)) ki su triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang xa hoi. hieu ((ke thuong) OR (ky thuong)) dau ((va hanh) or (va thanh)) ki su triet*.