Perhaps you should try some spelling variations:
pham chuc » pham duc, pham huu, kham chua
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
hieu van » hieu va, thien van, lieu va
vu sach » vu bach, su sach, vu khach
cam cuc » cam xuc, cham cuu, pham cuc
vai cua » dai cua, hai cua, lai cua
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
cua tre » cua te, cuu tre, cua triet

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 ky dang xa hoi. ((hieu ve) OR (hieu van)) ((cam cuc) or (pham chuc)) ban hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky dang xa hoi. ((hieu ve) OR (hieu van)) ((cam cuc) OR (pham chuc)) ban hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky dang xa hoi. ((hieu ve) OR (hieu van)) ((cam cuc) or (pham chuc)) ban hanh vai cua tre*".