Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
truc va » thuc va, trung va
vai hoa » van hoa, va hoa, dai hoa
y lang » o lang, _ lang, tay lang
ve cam » ve cham, ve cac, va cam

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 y lang xa hoi. hieu ve cam ((truc va) or (thuc vat)) hanh vai hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y lang xa hoi. hieu ve cam ((truc va) OR (thuc vat)) hanh vai hoa viet.
• Adding a wildcard symbol may retrieve word variants: su sach y lang xa hoi. hieu ve cam ((truc va) or (thuc vat)) hanh vai hoa viet*.