Perhaps you should try some spelling variations:
pham chuc » pham duc, pham huu, kham chua
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
cam cuc » cam xuc, cham cuu, pham cuc
ban dan » ban hang, ban hanh, ban quan
dan dan » dang dan, dao dan, dan dat
dan cua » dan ca, ban cua, dai cua
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach thu nang x hoi. hieu va ((cam cuc) or (pham chuc)) ban dan dan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu nang x hoi. hieu va ((cam cuc) OR (pham chuc)) ban dan dan cua tre*.