Perhaps you should try some spelling variations:
pham chuc » pham duc, pham huu, kham chua
thanh lap » thanh san, phan lap, thanh hai
thu sang » thu hang, thu san, thu bang
hanh lai » hanh lam, hanh tai, thanh loi
sach thu » sach thue, sach thieu, sach tham
so sach » so sanh, bo sach, co sach
chuc va » thuc va, thuc vat
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, sang tao
chau te » chau tho
ma hoi » mai hoi, xa hoi, ma hoa

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 sang ma hoi. ((hieu ve) or (hieu qua)) pham chuc va ((hanh lai) OR (thanh lap)) chau te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu sang ma hoi. ((hieu ve) OR (hieu qua)) pham chuc va ((hanh lai) OR (thanh lap)) chau te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu sang ma hoi. ((hieu ve) or (hieu qua)) pham chuc va ((hanh lai) OR (thanh lap)) chau te".
• Adding a wildcard symbol may retrieve word variants: so sach thu sang ma hoi. ((hieu ve) or (hieu qua)) pham chuc va ((hanh lai) OR (thanh lap)) chau te*.