Perhaps you should try some spelling variations:
pham chuc » pham duc, pham huu, kham chua
chuc van » chu van, chuc va, thuc van
hoc sach » hoc sinh, hoc cac, hoc anh
hanh hai » thanh hai, nhanh hai, hang hai
thu nang » thi nang, thu hang, thu bang
van hanh » van thanh, ban hanh, van anh
so sach » bo sach, co sach
hai cua » thai cua, dai cua, hoi cua
so sanh » do sanh
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((so sach) or (hoc sach))) or (so sanh)) thu nang ma hoi. hieu va pham chuc van hanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((so sach) OR (hoc sach))) OR (so sanh)) thu nang ma hoi. hieu va pham chuc van hanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: ((((so sach) or (hoc sach))) or (so sanh)) thu nang ma hoi. hieu va pham chuc van hanh hai cua te*.