Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
cham luc » cham soc, nhan luc, cham cuu
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
sang ma » tang ma, nang ma, sang tao
lang xa » lang ha, dang xay, lang van
ve cham » va cham, ve chat, vu cham
luc va » duc va, tuc va, loc va
gi ve » gia ve, gi he, vi ve
gi de » gia de, ga de, gi he

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty ((lang xa) or (sang ma)) hoi. hieu ve cham luc va thanh ((gi ve) or (gi de)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((lang xa) OR (sang ma)) hoi. hieu ve cham luc va thanh ((gi ve) OR (gi de)) triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((lang xa) or (sang ma)) hoi. hieu ve cham luc va thanh ((gi ve) or (gi de)) triet*.