Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
khach ty » sach ty
tang tai » hang tai, dung tai, sang tao
tai khoi » tai khoa, mai khoi, tao khoi
cham duc » pham duc, pham duy, phan duc
hanh lam » thanh lap, hanh kem, hanh va
ty tang » tay tang, ty xang, ty hang
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
lam cua » nam cua, lam chat
cua tre » cua te, cuu tre, cua triet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach ty tang tai khoi. hieu va ((cham duc) OR (cham soc)) va hanh lam cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu khach ty tang tai khoi. hieu va ((cham duc) OR (cham soc)) va hanh lam cua tre".
• Adding a wildcard symbol may retrieve word variants: vu khach ty tang tai khoi. hieu va ((cham duc) OR (cham soc)) va hanh lam cua tre*.