Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
lua tre » cua tre, luy tre, dua tren
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
ve cam » ve cham, ve cac, va cam
vi lua » vi luu

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 v nang xa hoi. hieu ve cam ((duc va) or (truc va)) hanh vi lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach v nang xa hoi. hieu ve cam ((duc va) OR (truc va)) hanh vi lua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach v nang xa hoi. hieu ve cam ((duc va) or (truc va)) hanh vi lua tre*.