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
hanh vai » hanh vi, hanh va, hanh tai
so sach » so sanh, bo sach, co sach
cua tuc » cua duc, cua thuoc, luat tuc
va hanh » van hanh, va thanh, va danh
chuc va » thuc va, thuc vat
nang ma » tang ma, sang ma, nang cao
v pham » vi pham, d pham
hieu v » hieu va, hieu ve, hieu 2
ma hoi » mai hoi, xa hoi, ma hoa
cua tu » cua cu, cua te, cua vu
cua su » qua su

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 thu nang ma hoi. hieu v pham chuc va hanh vai ((((cua tu) OR (cua tuc))) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu nang ma hoi. hieu v pham chuc va hanh vai ((((cua tu) OR (cua tuc))) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu nang ma hoi. hieu v pham chuc va hanh vai ((((cua tu) OR (cua tuc))) or (cua su))".
• Adding a wildcard symbol may retrieve word variants: so sach thu nang ma hoi. hieu v pham chuc va hanh vai ((((cua tu) OR (cua tuc))) or (cua su))*.