Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
thai cua » than cua, tai cuc, tri cua
duc manh » suc manh, duc anh, duc minh
dang xa » dang xay, dang ha, dang va
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
tai cua » tai cuc, tri cua, dai cua
cam duc » cam xuc, cao duc, pham duc
su sai » su tai, su hai, su dai
sai ky » sac ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky ((dang xa) OR (lang xa)) hoi. hieu ve cam duc manh hanh ((tai cua) or (thai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky ((dang xa) OR (lang xa)) hoi. hieu ve cam duc manh hanh ((tai cua) OR (thai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky ((dang xa) OR (lang xa)) hoi. hieu ve cam duc manh hanh ((tai cua) or (thai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: su sai ky ((dang xa) OR (lang xa)) hoi. hieu ve cam duc manh hanh ((tai cua) or (thai cua)) triet*.