Perhaps you should try some spelling variations:
lmay nang » luan nang, may nong, day nang
may nang » may nong, ky nang, cam nang
hanh tai » thanh tai, hang tai, han tai
vu sach » vu bach, su sach, vu khach
va hanh » van hanh, va thanh, va danh
ve chat » va chat, van chat
ve cham » va cham, vu cham, ve chim
xuc va » duc va, tuc va, luc va
tai va » thai va, mai va, tri va
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: vu sach ((may nang) or (lmay nang)) xa hoi. hieu ((ve cham) or (ve chat)) xuc va hanh tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((may nang) OR (lmay nang)) xa hoi. hieu ((ve cham) OR (ve chat)) xuc va hanh tai va thiet.
• Adding a wildcard symbol may retrieve word variants: vu sach ((may nang) or (lmay nang)) xa hoi. hieu ((ve cham) or (ve chat)) xuc va hanh tai va thiet*.