Perhaps you should try some spelling variations:
qua cham » qua cac, va cham, qua cua
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
su triet » su viet, su tien
ve triet » va trien
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
qua hai » qua hoat
y nang » ky nang, ly nang, v nang

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 y nang xa hoi. hieu ((qua cham) OR (qua hai)) tu va thanh vi ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((qua cham) OR (qua hai)) tu va thanh vi ((su triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((qua cham) OR (qua hai)) tu va thanh vi ((su triet) or (ve triet))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((qua cham) OR (qua hai)) tu va thanh vi ((su triet) or (ve triet))*.