Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
va thanh » gia thanh, ban thanh, va tinh
thanh do » thanh de, thanh pho, thanh hoa
su sach » so sach, vu sach
cu tren » tu tren, dua tren
ve cao » ve bao, ve cac, ve co
va cao » va cac, va co, va dao
do cu » do cua, do tu, co cu

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) or (vu khach)) ky nang x ho. hieu ((ve cao) or (va cao)) duc va thanh do cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu khach)) ky nang x ho. hieu ((ve cao) OR (va cao)) duc va thanh do cu tren.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu khach)) ky nang x ho. hieu ((ve cao) or (va cao)) duc va thanh do cu tren*.