Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
sach thu » sach thue, sach thieu, sach tham
cam suc » cam xuc, cao suc, cham soc
lai cua » dai cua, hai cua, lai chau
vai cua » dai cua, hai cua, bai cua
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, xach tay
nang xa » nang x, lang xa, nang ma
ve cam » ve cham, ve cac, va cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam suc manh hanh ((vai cua) OR (lai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam suc manh hanh ((vai cua) or (lai cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam suc manh hanh ((vai cua) or (lai cua)) tre*.