Perhaps you should try some spelling variations:
hoang ha » hoang hai, hong ha, hoang nham
hieu cao » chieu cao, hieu cac, hieu ca
chat luc » chat xuc, chat lua, nhan luc
van hanh » van thanh, ban hanh, van anh
hanh lam » thanh lap, hanh kem, hanh va
va trien » va truyen, va thiet, va tuyen
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
hang xa » hoang xa, hang va, hang ca
luc van » luoc van, luu van, duc van
lam va » nam va, dam va, lam ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty ((hang xa) or (hoang ha)) hoi. hieu cao chat luc van hanh lam va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty ((hang xa) OR (hoang ha)) hoi. hieu cao chat luc van hanh lam va trien.
• Adding a wildcard symbol may retrieve word variants: vu sach ty ((hang xa) or (hoang ha)) hoi. hieu cao chat luc van hanh lam va trien*.