Perhaps you should try some spelling variations:
chieu cao » hieu cac, hieu ca, chieu day
van hanh » van thanh, ban hanh, van anh
chat luc » chat xuc, chat lua, nhan luc
hang xa » hoang xa, hang va, hang ca
sach tu » sach thu, cach tu, sach uu
sach ty » sach y, sach thu, xach tay
luc van » luoc van, luu van, duc van
va ve » va de, va vi, va vo
va le » va de, vu le

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sach tu)) hang xa hoi. chieu cao chat luc van hanh ((va ve) OR (va le)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach tu)) hang xa hoi. chieu cao chat luc van hanh ((va ve) OR (va le)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) or (sach tu)) hang xa hoi. chieu cao chat luc van hanh ((va ve) OR (va le)) triet".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sach tu)) hang xa hoi. chieu cao chat luc van hanh ((va ve) OR (va le)) triet*.