Perhaps you should try some spelling variations:
tham nuoc » thay nuoc, thoat nuoc, nha nuoc
tham soc » cham soc, thai son, ham so
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
vi cua » vai cua, di cua
te cac » tu cac, te cao, de cac
ha hoi » hoa hoi, ha noi, xa hoi
ve cac » va cac, vien cac
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) OR (ve cac)) ky dang ha hoi. hieu va ((tham soc) or (tham nuoc)) va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky dang ha hoi. hieu va ((tham soc) OR (tham nuoc)) va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (ve cac)) ky dang ha hoi. hieu va ((tham soc) or (tham nuoc)) va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((te cac) OR (ve cac)) ky dang ha hoi. hieu va ((tham soc) or (tham nuoc)) va hanh vi cua te*.