Perhaps you should try some spelling variations:
kly nang » ky nang, ki nang, kha nang
cham luc » cham soc, nhan luc, cham cuu
han thai » han tai, ban thai, van thai
su sach » so sach, vu sach
ly nang » ky nang, ly hang, ly vang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
thai va » thai van
luc va » duc va, tuc va, loc va
va han » va phan, van han, va hanh
thiet » thieu

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 ((ly nang) or (kly nang)) xa hoi. hieu ve cham luc va han thai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly nang) OR (kly nang)) xa hoi. hieu ve cham luc va han thai va thiet.
• Adding a wildcard symbol may retrieve word variants: su sach ((ly nang) or (kly nang)) xa hoi. hieu ve cham luc va han thai va thiet*.