Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cau tren » cu tren, dau tren, ca tren
tru nang » tra nang, tri nang, truc nano
va tinh » may tinh
vu hanh » vu khanh, vu thanh, du hanh
hieu ve » hieu va, hieu van
tu nang » tu nong, tu nano, tu lang
vi cau » va cau, ve cau, di cau
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: vu hanh ((tu nang) or (tru nang)) xa hoi. hieu ve cam xuc ((ban thanh) or (va tinh)) vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu hanh ((tu nang) OR (tru nang)) xa hoi. hieu ve cam xuc ((ban thanh) OR (va tinh)) vi cau tren.
• Adding a wildcard symbol may retrieve word variants: vu hanh ((tu nang) or (tru nang)) xa hoi. hieu ve cam xuc ((ban thanh) or (va tinh)) vi cau tren*.